—Look! The man at the gate        be our headmaster. He stands there every morning.—No, it        be him. He is holding a meeting in the office now.
#77353
A
must; can’t
B
must; can
C
can’t; mustn’t
D
can’ t; must
推荐题目
You ______ be hungry already--- you had lunch only two hours ago!
#63140
A
mustn’t
B
wouldn’t
C
can’t
D
needn’t
The first question was difficult, but the rest were pretty easy.
#77841
A
休息
B
安定
C
其余的
D
停止