Type 1 Conditional (Fill In)

Explanation
The correct answer is "come; will be able to" and "come; 'll be able to". In this conditional sentence, the first part expresses a hypothetical situation ("If I come") and the second part expresses the result or possibility ("you will be able to see me"). Both "will be able to" and "'ll be able to" are correct ways to express future ability.

Explanation
The correct answer is "will get wet; does not take" or "will get wet; doesn't take". This is because the sentence is talking about a future possibility. It is stating that Henry will become wet if he does not bring his umbrella. The use of "will" indicates a future event, and "does not take" or "doesn't take" indicates that Henry is not bringing his umbrella. Therefore, the correct answer is that Henry will get wet if he does not take his umbrella.

Explanation
The correct answer is "is; shall ask." In this sentence, the word "if" indicates a hypothetical situation. The verb "be" is used in the present tense to match the subject "it." The phrase "shall ask" is used to express a polite request in the future.

Explanation
In this sentence, the verb "will help" is in the future tense, indicating that Mary is willing to assist in the future. The verb "want" is in the present tense, suggesting that Mary's help is conditional upon the person wanting it. Therefore, the correct answer is "will help; want."

Explanation
The correct answer is "don't catch; 'll put off" or "do not catch; will put off". These options use the proper verb tense and form to express a conditional statement. The first part of the sentence uses the negative form of the present simple tense ("don't catch" or "do not catch") to indicate that they will not catch the train. The second part of the sentence uses the future simple tense ("'ll put off" or "will put off") to show that they will postpone the trip for another time.

Explanation
If Tom does it, he will be punished. The first part of the sentence is in the present simple tense, indicating a general action or habit. The second part of the sentence is in the future simple tense, indicating a future consequence. The alternative answer, "does; 'll be," is also correct because " 'll" is a contraction of "will."

Explanation
The correct answer is "won't know; tell" or "will not know; tell". In this sentence, the word "unless" is used to introduce a condition. The first part of the sentence states that "They won't know" or "They will not know". The second part of the sentence states that "unless you tell them". So, the correct answer is a combination of "won't know" or "will not know" in the first part and "tell" in the second part.

Explanation
The correct answer is "stays; will learn" or "stays; 'll learn". In this sentence, the verb "stays" is in the present tense, indicating that Carlo is currently staying in England. The auxiliary verb "will" or the contraction "'ll" is used to indicate a future action, in this case, Carlo learning to speak English. This construction suggests that Carlo's stay in England will be long enough for him to learn English.

Explanation
The correct answer is 'll phone; find, shall phone; find. Both options use the future tense to indicate a future action of phoning Emma. "I'll phone" is a contraction of "I will phone," and "shall phone" is also a future tense form. The second part of the sentence, "if I find her number," suggests that the action of finding her number is a condition for the future action of phoning her. Therefore, both options correctly convey the intended meaning of the sentence.

Explanation
This sentence is a conditional statement in the future tense. It suggests that Nick will spend his holiday in America if his aunt invites him. The use of "will spend" indicates a future action, while "invites" is in the present tense because it is a condition that needs to be met for the action to occur.