The word "are" is the correct answer because it is the correct verb form to use with the subject "hotel" in this sentence. The sentence is stating that on the rim of the Kilauea volcano in the Hawaiian Island, there is a hotel called the Volcano Hotel. The verb "are" indicates the existence of the hotel in that location.

The word "be" in this context is used as an auxiliary verb indicating that a system for matching donor and recipient tissues has been developed. In order to overcome rejection of a skin graft, this system needs to exist and be in place.

The word "would has" is incorrect in standard English grammar. The correct form should be "would have." This is because "would" is used to indicate a hypothetical or imagined situation in the past, and it should be followed by the past participle form of the verb, which is "have" in this case. Therefore, the correct sentence would be "dozen other reporters would have already asked that question."

The word "nor" is used to indicate a negative choice between two options. In this case, the sentence is saying that a bankruptcy may be voluntary or involuntary, but not both. This means that a bankruptcy cannot be both voluntary and involuntary at the same time.

The given sentence states that Linus Pauling has won two Nobel Prizes, one in Chemistry in 1954 and another in Peace in 1962. The verb "wins" is used to indicate the action of winning, and it is in agreement with the subject "Linus Pauling" who is the recipient of the prizes. The sentence is providing information about the achievements of Linus Pauling in winning these prestigious awards.

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The word "alike" is used in the sentence to indicate that dolphins, like all other mammals, have lungs. This suggests that dolphins share this characteristic with other mammals, implying that they also possess lungs.

The given statement is discussing the formation of numbers in the binary system. It states that binary numbers are formed using only two symbols. The word "are" in the answer indicates that this statement correctly explains the formation of numbers in the binary system.

The word "make" is the correct answer because it is the correct verb form to use in the sentence. The sentence is discussing what nails are commonly composed of, and "make" is the appropriate verb to describe the process of creating or forming nails. The other options ("are," "can," and "contain") do not fit grammatically or contextually in the sentence.

The answer is "is" because it is used to connect the subject "twenty six bones in the human foot" to the information about the number of bones in the toes, which is fourteen. "Is" indicates that the statement is true and that there are indeed twenty six bones in the human foot, with fourteen of them being in the toes.

The word "them" in the given sentence refers to commercial letters of credit. It is stated that commercial letters of credit are often used to finance export trade, but they can also have other uses. This means that apart from being used for financing export trade, commercial letters of credit can be utilized for other purposes as well.

The word "an" is the correct answer because it is the appropriate article to use before the noun "unique opportunity." In this context, "an" is used because "unique opportunity" starts with a vowel sound.

The given sentence states that the leek, which is a member of the lily family, has a milder taste compared to the onion. This implies that the leek has a less intense or strong flavor than the onion.

The term "deep" in the context of sleep refers to non-REM sleep, particularly stages 3 and 4, which are characterized by slow-wave activity on an EEG and are considered the most restorative phases of sleep. REM (Rapid Eye Movement) sleep is a distinct phase that is characterized by rapid eye movements, increased brain activity, vivid dreams, and temporary paralysis of the muscles. Therefore, the statement should distinguish between REM sleep and non-REM deep sleep, as they represent different phases of the sleep cycle.

The correct answer is "tries" because it accurately completes the sentence and maintains the correct verb tense. The sentence is discussing the first attempts or efforts made to use pure nicotine to help smokers quit, which occurred in the mid-1980s with nicotine-laced chewing gum.

The sentence states that electrical impulses may be picked up by the optic nerve. This suggests that the optic nerve has the ability to detect and perceive electrical impulses.

The word "were" is the correct answer because it is the correct verb form to match the subject "hills." In this sentence, "were" is used to indicate that the hills existed or were present.

The word "may" suggests a possibility or uncertainty, while the word "had" indicates a past action or condition. Therefore, the correct answer implies that it is possible for a patient suffering from amnesia to have experienced partial or total loss of memory in the past.

Helium has the lowest boiling point among all substances.

The word "as" is used in this sentence to indicate a comparison or similarity between the duration of fasts and the length of a year. It suggests that certain types of snakes are capable of surviving fasts that can last as long as a year.

When children experience an excessive amount of frustration, their behavior becomes disintegrated or fragmented. This means that their actions, emotions, and thoughts become disconnected and inconsistent. The word "its" in the answer refers to the behavior of the children.

The word "viewing" is the correct answer because it is the gerund form of the verb "view" and it fits grammatically in the sentence. The sentence is discussing the experience of observing Halley's comet through a telescope, so "viewing" accurately describes the action being taken.

The word "a" is the correct answer because it is the indefinite article that is used before a singular noun to refer to any member of a general class. In this sentence, "a trip" refers to any trip, "the bottom" refers to any bottom, and "the Grand Canyon" refers to any Grand Canyon. Therefore, the indefinite article "a" is the appropriate choice.

The given answer "establish" correctly fills in the missing word in the sentence. It is the past tense form of the verb "establish," which means to set up or create something. In the context of the sentence, it refers to the Peace Corps being created or founded on March 1, 1961, by President John F. Kennedy.

President Reagan was shot as he was leaving a Washington hotel. The word "his" in the sentence refers to President Reagan.

The word "held" is the correct answer because it is the correct past tense form of the verb "hold." In the given sentence, it is used to describe the action of the cabs being able to accommodate or contain sixty people each.

Superman made their debut in 1938 in action comics. The word "their" is used to indicate that it was Superman's debut, suggesting that Superman is a collective entity or a group of individuals.

The word "annually" in this context means that the salmon migration from the sea to fresh water happens every year. This suggests that it is a regular and predictable event.

Protein molecules are considered to be the most complex compared to carbohydrate molecules. This is because proteins are made up of long chains of amino acids, which can fold and interact with each other in various ways to form complex three-dimensional structures. On the other hand, carbohydrates are simpler molecules composed of carbon, hydrogen, and oxygen atoms. While carbohydrates can form chains or rings, they do not have the same level of complexity as proteins. Therefore, the statement "Protein molecules are the most complex than the molecules of the carbohydrates" is correct.

Food manufacturers may use food additives for various purposes such as preserving, coloring, flavoring, or fortifying foods. In this case, the correct answer is "for preserving," indicating that one of the reasons manufacturers may use food additives is to extend the shelf life of the food product and prevent spoilage.

The correct answer is "covering" because it is the verb form that agrees with the subject "particular issues." "Covering" is the present participle form of the verb "cover," indicating that the issues were being addressed or discussed on the half-hour program.

The correct answer is "is trying" because it indicates that the scientist is currently making an effort or attempting to determine if there is a relationship between saccharine and cancer. The phrase "is trying" suggests ongoing action and implies that the scientist is actively engaged in the process of investigation.

Workers training for a specific job have a strong possibility of being replaced by a machine because advancements in technology have made it possible for machines to perform tasks that were previously done by humans. With the increasing automation in various industries, machines are becoming more efficient and cost-effective compared to human workers. Therefore, there is a strong likelihood that trained workers may be replaced by machines to increase productivity and reduce labor costs.

On June 30, 1992, an additional second was inserted into the day by international timekeepers in Paris.

The word "being" is used incorrectly in this sentence. The correct form should be "been" instead of "being". "Been" is the past participle of the verb "be" and is used to indicate an action that has already occurred. In this case, the sentence should read "Has since been translated into thirty languages." This indicates that the translation of Alice in Wonderland into different languages has already happened.

At the start of the American Revolution, lanterns were hung in the Old North Church as a signal that the British had come.

The word "do" is the correct answer because it is the only word that fits grammatically and makes sense in the sentence. The sentence is stating that only a small percentage of oil wells actually make a profit, so the word "do" is used to indicate that these wells are the ones that achieve profitability.

The word "documenting" in the given sentence means that the exhibition at the museum is providing evidence or information about the origins and history of the banner. It suggests that the exhibition is presenting factual records or documents to support the understanding of the Confederate flag.

The word "greatly" is used to describe the level or extent of the variation on a microscopic scale. It suggests that the variation is significant or substantial. The use of "greatly" emphasizes the importance or magnitude of the variation, indicating that it is not minor or insignificant. The word "likely" indicates that there is a high probability or likelihood of this variation occurring. Therefore, the correct answer is "greatly" because it accurately describes the level or extent of the variation and its likelihood.

The buffalo and bison are similar in many ways, with the exception of their size and shape of the head and shoulders. This implies that they share many common characteristics, but differ in certain physical attributes.

The given answer "others" is correct because it refers to other cities being able to reduce smog in the same way that Pittsburgh has done. The sentence suggests that Pittsburgh has successfully reduced smog by requiring more complete oxidation of fuel in cars, and it implies that other cities can achieve the same result by implementing similar measures.

Ford designed the first large scale assembly line at a plant in Highland Park, Michigan. This means that the plant in Highland Park, Michigan was the location where Ford implemented the first assembly line on a large scale. Ford's innovation revolutionized the manufacturing industry by increasing efficiency and productivity.

The word "endow" means to provide or equip someone or something with a particular quality or attribute. In this context, it means that the attorney general was given or provided with clear-cut law enforcement functions. This suggests that the attorney general was given the authority and responsibility to enforce laws, indicating a significant change in their role within the Department of Justice.

The word "dislike" is the correct answer because it is the only word in the given sentence that makes grammatical sense. The sentence is comparing two types of sumac berries, one with red berries and one with white berries, and stating that the sumac with white berries is poisonous. The word "dislike" fits in the sentence as a verb that indicates a negative preference or feeling towards something, which is appropriate in this context.

The word "earliest" in the given sentence indicates the time at which the CVS procedure is performed during pregnancy. The explanation suggests that the earlier the CVS procedure is done, the higher the risk to the baby. This implies that performing the procedure at an early stage of pregnancy increases the potential danger or harm to the baby.

The correct answer is "is". This is because the sentence is referring to the evidence that has piled up since Webster's paper was published, and it states that there is no new idea to contradict his original theory. The verb "is" agrees with the subject "there" in this sentence.

The correct answer is "alone" because it is the only word that is directly related to the district's visitor center in Gulf Breeze. The passage describes the live oak forest as surrounding the visitor center, suggesting that it is the only place in the park where visitors can go alone. The other words, "welcoming," "friendly," and "live," do not provide any information about the visitor center or its surroundings.

The correct answer is "west." This is because the question states that the Ohio river is the only major American river that flows in a west direction. Therefore, it is the preferred route for settlers as it allows them to travel in a westward direction.

The correct answer is "other". This is because the sentence is discussing the "other interesting aspect" of tachistopic training, implying that there are multiple aspects being discussed. The word "other" is used to indicate that this aspect is in addition to the ones previously mentioned.

The word "the" is used to refer to a specific noun that has already been mentioned or is known to both the speaker and the listener. In this case, "the" is used to refer back to the arteries that were mentioned earlier in the sentence. It indicates that blood flows through specific arteries, rather than just any arteries.