问题
单项选择题
If it ______, they'll have a sports meeting in their school.
A. isn't rain
B. doesn't rain
C. didn't rain
D. won't rain
答案
参考答案：B
解析： 此题考查句子时态。在if引导的条件状语从句中，如果主句是一般将来时态，则从句须用一般现在时态，故选B。
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