问题补充：
– Tom wants to know if you a picnic next Sunday.
-- Yes. But if it , we’ll visit the museum instead.
A. will have; will rain
B. have; rains
C. have; will rain
D. will have; rains
答案：
A. will have; will rain
B. have; rains
C. have; will rain
(答案→)D. will have; rains
解析：句意:汤姆想知道下周你是否去野餐?_是的,但是如果下雨,我们将参观博物院.结合语境可知上文是宾语从句,从句中描述的是将来某时发生的动作,故用将来时态.下文为条件状语从句,当主句为将来时态时,从句中用一般现在时态表示将来的动作,故下文用一般现在时态.选D.
