According to the air traffic rules, you ___ switch off your mobile phone before boarding.
#90472
A
may
B
can
C
would
D
should
推荐题目
—This wall of air is an effective answer to the problem and it ____ work. —But it is a question to put such a wall of air around the statue.
#89204
A
may
B
must
C
should
D
could
---Did you visit the famous museum ? ---No. We ______ it. But we spent too much time shopping.
#89472
A
can't have visited
B
could have visited
C
must have visited
D
shouldn't have visited
I’d rather you did some housework when you are free ,but you .
#88994
A
didn’t
B
shouldn’t
C
weren’t
D
don’t
He made a suggestion yesterday that the sports meeting ______ be put off until next Wednesday.
#86696
A
would
B
must
C
should
D
could