Fill in the blank with the most appropriate word. I’ll stay home if it __________. A. rained B. rains C. will rain D. won’t rain

The correct answer is: B. rains

The sentence is about a future event, so we need to use the present tense form of the verb “rain.” The other options are all in the past or future tense, which are not appropriate for this sentence.

• A. rained is the past tense form of the verb “rain.” It is used to talk about an event that happened in the past. In this sentence, we are talking about a future event, so we need to use the present tense form of the verb.
• C. will rain is the future tense form of the verb “rain.” It is used to talk about an event that will happen in the future. In this sentence, we are talking about a future event, so we can use either the present tense or the future tense form of the verb. However, the present tense form is more common in this type of sentence.
• D. won’t rain is the negative form of the future tense of the verb “rain.” It is used to talk about an event that will not happen in the future. In this sentence, we are not talking about an event that will not happen, so we do not need to use the negative form of the verb.

Therefore, the correct answer is: B. rains