What’s the matter? You are like that for a few minutesWell it is bound . I’m th

问题补充：

--- What’s the matter? You are like that for a few minutes.

--- Well, it is bound . I’m thinking if we need get the wet clothes back to the room.

A. to rain

B. to have rained

C. rained

D. raining

答案：

(答案→)A. to rain

B. to have rained

C. rained

D. raining

解析：考查短语搭配。be bound to do必定做某事，句意：一定下雨了，我正考虑我们是否把湿衣服收回家，选A。