# TOEFL Exercise Questions: Quiz!

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Quizzes Created: 28 | Total Attempts: 129,238
Questions: 10 | Attempts: 3,586

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• 1.

### ___ loom high above the northern and northeastern boundaries of the expanding city of Tucson.

• A.

The Santa Catalina mountains

• B.

Because the Santa Catalina mountain

• C.

The Santa Catalina mountains are

• D.

That the Santa Catalina mountains

A. The Santa Catalina mountains
Explanation
The correct answer is "The Santa Catalina mountains". This is the only option that completes the sentence and makes grammatical sense. The sentence is describing something that looms high above the northern and northeastern boundaries of Tucson, and the Santa Catalina mountains fit this description.

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• 2.

### Radioactive _____ provides a powerful way to measure geologist time.

• A.

It

• B.

Dates

• C.

Dating

• D.

Can

C. Dating
Explanation
Radioactive dating provides a powerful way to measure geologist time. It involves using the decay rate of radioactive isotopes in rocks and minerals to determine the age of geological samples. By analyzing the ratio of parent isotopes to daughter isotopes, scientists can calculate the amount of time that has passed since the rock formed or the mineral crystallized. This method is widely used in geology to determine the age of rocks, fossils, and other geological materials, providing valuable insights into Earth's history and the processes that have shaped the planet over millions of years.

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• 3.

### ____ contained in the chromosomes, and they are thought of as the units of heredity.

• A.

Genes which are

• B.

Genes are

• C.

When genes

• D.

Because of genes

B. Genes are
Explanation
Genes are contained in the chromosomes and are considered as the units of heredity. Genes carry the instructions for the development, functioning, and characteristics of living organisms. They are responsible for transmitting traits from parents to offspring. Genes are composed of DNA sequences that encode specific proteins or regulate the expression of other genes. They play a crucial role in determining an individual's physical and behavioral traits.

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• 4.

### The benefit ___ the study is that it provides the necessary information to anyone who needs it.

• A.

Of

• B.

Which

• C.

That

• D.

Because

A. Of
Explanation
The word "of" is the correct answer because it is used to show the relationship between the noun "benefit" and the noun phrase "the study." In this sentence, "of" indicates that the benefit belongs to or is derived from the study. It explains that the study provides the necessary information to anyone who needs it, making it beneficial.

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• 5.

### The same symptoms that occur ____ occur with cocaine.

• A.

Amphetamines can

• B.

With amphetamines can

• C.

So amphetamines

• D.

With amphetamines they

B. With amphetamines can
Explanation
The correct answer is "With amphetamines can." This answer suggests that the same symptoms that occur with cocaine can also occur with amphetamines. It implies that there is a similarity in the symptoms experienced when using both substances.

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• 6.

### Many companies across the country have molded the concepts ___ describes into an integrated strategy for preventing stress.

• A.

And wolf

• B.

That wolf

• C.

What wolf

• D.

So wolf

B. That wolf
Explanation
The phrase "that wolf" is the correct answer because it is grammatically correct and fits logically in the sentence. The sentence is discussing how many companies have integrated a strategy for preventing stress based on certain concepts. Therefore, "that wolf" makes sense in this context as it implies the specific concepts being referred to.

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• 7.

### _____ in the first draft of the budget will not necessarily be in the final draft.

• A.

Although it appears

• B.

It appears

• C.

What appears

• D.

Despite its appears

C. What appears
Explanation
The phrase "what appears" is the correct answer because it accurately completes the sentence by indicating that whatever is in the first draft of the budget may or may not be included in the final draft. It suggests that the content of the first draft is subject to change and may not be finalized.

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• 8.

### If a food label indicates that food is mostly carbohydrate, it does not mean ____ is good food to eat.

• A.

And it

• B.

And

• C.

That it

• D.

When

C. That it
Explanation
If a food label indicates that food is mostly carbohydrate, it does not mean that it is good food to eat. The label only provides information about the food's composition, specifically that it contains a high amount of carbohydrates. However, the quality and nutritional value of the food cannot be determined solely based on its carbohydrate content. Other factors such as the presence of added sugars, unhealthy fats, or artificial ingredients need to be considered to determine if the food is a good choice for consumption.

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• 9.

### A need for space law to include commercial concern has been recognized inasmuch ___ been expanding drastically in recent years.

• A.

The commercial launch industry

• B.

The commercial launch industry has

• C.

As has the commercial launch industry

• D.

As The commercial launch industry has

D. As The commercial launch industry has
Explanation
The correct answer is "as The commercial launch industry has". This answer is correct because it maintains the parallel structure of the sentence. The phrase "as The commercial launch industry has" is parallel to the phrase "been expanding drastically in recent years". Both phrases start with the word "as" and have the same subject "The commercial launch industry". This parallel structure ensures clarity and coherence in the sentence.

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• 10.

### The report on the nuclear power plant indicated that when the plant had gone online ____ unsafe.

• A.

• B.

• C.

• D.

Explanation
The correct answer is "it had been." This answer completes the sentence by indicating that when the nuclear power plant had gone online, it had been unsafe. The phrase "it had been" is used to refer back to the plant, indicating its previous state of being unsafe.

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• Current Version
• Mar 22, 2023
Quiz Edited by
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• Aug 08, 2020
Quiz Created by
Darmawati

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