--Let’s go fishing if it this weekend.But nobody knows if it .A. is fine; will rainB.

问题补充：

--Let’s go fishing if it this weekend.

--But nobody knows if it .

A. is fine; will rain

B. will be fine ; rains

C. is fine; rains

D. will be fine; will rain

答案：

(答案→)A. is fine; will rain

B. will be fine ; rains

C. is fine; rains

D. will be fine; will rain

解析：此题重点考查if引导的条件状语从句和宾语从句的时态的相关知识。前者要用一般现在时，后者根据语境可以用任何时态。