----Nowonderyoucaughtacold.You       outlastnightwitho...

问题详情：

 ---- No wonder you caught a cold. You        out last night without a coat.

   ---- I know how silly I was.

A. shouldn’t have gone B. mustn’t have gone C. couldn’t D. mustn’t

【回答】

  A

知识点：虚拟语气与情态动词

题型：选择题