Question

We'll have to stay inside unless it ________ tomorrow.

1. A.
   stops raining
2. B.
   will stop raining
3. C.
   stops to rain
4. D.
   will stop to rain

Answer 1

A
导解：条件状语从句中，从句应用一般现在时代替将来时．stop doing sth停止干某事；stop to do sth停下来去干某事．