Look,thegroundiswet.Itmusthaverainedlastnight,

问题详情：

 Look, the ground is wet. It must have rained last night, _________?

A. wasn’t it          B. hasn’t it                 C. didn’t it          D. mustn’t it

【回答】

C

知识点：疑问句 反义疑问句

题型：选择题