题目

单项选择 —What will you do if it ______ tomorrow？　 —We have to carry it on, since we've got everything ready. A. is raining            B. rains  C. will rain             D. rain 答案：B　点拨：用语法判定法。主句用一般将来时，if引导的从句用一般现在时表将来。

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