---MustIreturnthehooktomorrowmorning?     ---No,you    ...

问题详情：

--- Must I return the hook tomorrow morning?

      --- No, you                 . You can keep it longer.

      A. mustn't           B. can't            C. needn't            D. couldn't

【回答】

C    

知识点：情态动词

题型：选择题