It ________be the vocabulary that caused you the problem in the exercise because you know a lot of words.
#62306
A
may
B
couldn’t
C
should
D
needn’t
推荐题目
According to the factory safety rules, all accidents _____ be reported to the safety officer.
#62239
A
may
B
can
C
would
D
shall
--Must we move to the next room?--No, you____________ . You may still live here if you like.
#75904
A
mustn't
B
don't
C
don't have to
D
won't
---Must I go to the gym three times a week? ---No, you ______. Twice a week is OK.
#63671
A
mustn’t
B
needn’t
C
can’t
D
shouldn’t
Some frightening pets _________ be kept home so that they won’t hurt others.
#75599
A
can
B
may
C
must
D
need
You ______ write the poem down. Our teacher will give us a copy.
#75235
A
can’t
B
shouldn’t
C
needn’t
D
mustn’t