Sir, you ______be sitting in this waiting room. It is for women and children only.
#89348
A
mustn’t
B
can’t
C
won’t
D
needn’t
推荐题目
He is an hour late by now.He         last night.
#87873
A
must stay up
B
should stay up
C
should have stayed up
D
must have stayed up
 I insist that he _______ medicine instead of law.
#87926
A
has studied
B
studies
C
should study
D
studied