题目内容
--- Mary I smoke here?
--- If you , choose a seat in the smoking section.
A.should B.could C.must D.may
C
考查情态动词。Must表必须。

练习册系列答案
相关题目
Mary, I________ John of his promise to help you.
A.told | B.reminded | C.warned | D.advised |
— Shall I help you with the washing ?
— No, Mary. I can manage, but ____.
A.it doesn’t matter |
B.I don’t mind |
C.thank you just the same |
D.it’s my pleasure |