问题

He____know the answer, but I’m not sure.
A:maybe
B:may be
C:may
D:must
B:may be
C:may
D:must
正确答案是:
同类题型
I’ll be free ___ seven o’clock
30. —Why! I ____ get you on the phone.— We ______ basketball on the playground when you phoned.
This pair of shoes _______ really big for me.— Why not try another _______
Which of the following underlined part is different in pronunciation with others
I used to love that film ____ I was a child, but I don’t feel it that way any more.