“MustIreturnthebookthismorning?”“No,you        .Butyou...

问题详情：

 “Must I return the book this morning?” “No, you         . But you         to return it before next Monday.”

    A. needn’t, must n’t, can C. mustn’t, may  D. needn’t, need

【回答】

D

知识点：情态动词

题型：选择题