-MustIfinishtheexerciseatschool?   -No,youdon'thaveto....

問題詳情：

 -Must I finish the exercise at school?

    -No, you don't have to. You _______ do it at home.

    A. must              B. need               C. will                D. can

【回答】

D

知識點：情態動詞

題型：選擇題