---Look. The man at the gate _____ be our headmaster. He is always standing there every morning.---No. it ____ be him. He is having a meeting in the office now.
#78230
A
must; can’t
B
must; mustn’t
C
can’t; can’t
D
can’t; mustn’t
推荐题目
When we worked in the same office，we _______ often have coffee together.
#63391
A
could
B
should
C
would
D
ought to
.--Your parents were anxious about you. You _____ home without saying a word. -- It’s my fault.
#63643
A
mustn’t be
B
shouldn’t have left
C
needn’t have left
D
couldn’t have left
- Shall I tell Shirley the good news?-No, you________. I’ve told her already.
#77370
A
can’t
B
shouldn’t
C
mustn’t
D
needn’t
Mary _______ be in the hospital. I saw her play basketball a minute ago.
#62940
A
mustn’t
B
shouldn’t
C
can’t
D
may not