—         Icomebackbeforefiveo’clock?—No,you    .Butyou...

问题详情：

—          I come back before five o’clock?

—No, you        . But you           be back later than seven o’clock.

       A. Need; must; mustn’t                 B. May; mustn’t; can’t

       C. Can; can’t; can’t                    D. Must; needn’t; can’t

【回答】

D 

知识点：情态动词

题型：选择题