—MustIfinishtheexercisethisafternoon?       —Yes,you

问题详情：

—Must I finish the exercise this afternoon?

        —Yes, you ______, but you ______ finish it now.

         A. must, mustn’t                 B. must , don’t have to

         C. may, needn’t                  D. may , mustn’t

【回答】

B

知识点：情态动词

题型：选择题