——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.
#89420
A
may
B
must
C
should
D
could
推荐题目
She ____ the film. She knows nothing about it.
#86975
A
can’tsee
B
can’thaveseen
C
mustsee
D
mustn’thaveseen
—What would you wish to do if you were a college student again? —That's very hard to say, but I wish I___________ when I was a college student.
#89321
A
has not studied biology
B
did study biology
C
had studied biology
D
studied biology
— Mary’s sister looks very beautiful now.— But she was very ugly before she tidied up her appearance（整容）. You _________ believe it!
#87061
A
shouldn’t
B
mustn’t
C
wouldn’t
D
might not
I have some difficulty in finding his house. I wish I_____his address.
#90235
A
remember
B
remembered
C
had remembered
D
would remember