―Look at the dark clouds. It rain soon.―I’m afraid so and we stay at home now.A. must

问题补充：

―Look at the dark clouds. It rain soon.

―I’m afraid so, and we stay at home now.

A. must, must

B. may, have to

C. might, must

D. should, have to

答案：

A. must, must

(答案→)B. may, have to

C. might, must

D. should, have to

解析：句意:-看那些乌云。可能快要下雨了。-恐怕是这样，我们现在不得不呆在家里。must 一定，肯定；may 可能；might 可能；should 应该；have to 不得不。根据句意可知选B。