问题补充:
I don’t know if it tomorrow. If it , I will stay at home.
A. will rain, rains
B. rains, will rain
C. will rain, will rain
D. rained, rains
答案:
(答案→)A. will rain, rains
B. rains, will rain
C. will rain, will rain
D. rained, rains
解析:一是:if引导的是否,后接的时态,要根据具体情况而定, 二是在if 引导的条件状语,如果主句为一般将来时,从句要用一般现在时,代替将来时。故选A