问题

You look so tired. You______have stayed up late again.
A:should
B:can
C:may
D:must
B:can
C:may
D:must
正确答案是:
同类题型
Is this_____ computer game— Yes, it’s _____ computer game.
1This is the song I’ve toldyou about. Isn’t it _____ beautiful one?
I live in a flat 15 miles _______ London.
_____ he didn’t know the custom in that country; otherwise, he wouldn’t have made such a mistake[ ]
___by the beauty of nature, the girl from London decided to spend another two days on the farm.