--- What would you do if it tomorrow?
--- We have to carry it on, since we’ve got everything ready.
A. rains
B. rain
C. will rain
D. is raining
网友回答
(答案→)A. rains
B. rain
C. will rain
D. is raining
解析：考查时态，if引导的条件状语从句用一般现在时代替一般将来时，句意：如果明天下雨你会怎么做？--既然我们一切都准备就绪了，我们只好继续。选A。