Question

【题目】It is really cold and the ground is wet; it have rained last night.

A. mightB. must

C. canD. should

Answer 1

【答案】B

【解析】

考查情态动词辨析。句意：天气很冷而且地面是湿的，昨晚一定下了雨。根据上文the ground is wet可知“昨晚下了雨”是肯定的，故用must have done“必定做了……”表示对过去十分有把握的推测，故选B。