If itrain tomorrow we’ll go on a trip.A. isn’tB. doesn’tC. won’tD. is going to

问题补充：

If itrain tomorrow，we’ll go on a trip.

A. isn’t

B. doesn’t

C. won’t

D. is going to

答案：

A. isn’t

(答案→)B. doesn’t

C. won’t

D. is going to

解析：句意：如果明天不下雨。我们就继续旅行。if引导的条件状语从句，主句用将来时，从句用一般现在时表将来。故选B.