The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
#90173
A
shan’t
B
can’t
C
needn’t
D
mustn’t
推荐题目
Mike insisted that he ____ nothing wrong and ____ free.
#87349
A
did… set
B
had done…be set
C
do…should be set
D
had done… must be set
-What sort of house do you want to have? Something big?--Well, it ______ be big--that's not important.
#90476
A
mustn't
B
needn't
C
can't
D
won't
－Are you satisfied with her answer?－Not at all. It couldn’t have been ________.
#86980
A
any worse
B
so bad
C
much better
D
the worst
He _______ the best person you had been expecting for the job, but who else _______?
#87031
A
may not be; could be
B
couldn’t be; might be
C
might not have been; could have been
D
mustn’t be; must have been