Lucy’s colour ________blue because she likes to be the leader, so it __________red.
#77316
A
can’t be, must be
B
can’t be, mustn’t be
C
should be , must be
D
must be, can’t be
推荐题目
You keep quiet in the library because everyone is reading here.
#75771
A
may
B
should
C
mustn’t
D
needn’t
I’m impressed with his determination. When he had a problem to solve, he _____ work at it until he found an answer.
#63610
A
would
B
might
C
must
D
should
—What do you think we can do for our aged parents?—You ____ do anything except to be with them and be yourself.
#62445
A
oughtn’t to
B
don’t have to
C
mustn’t
D
can’t
I told Sally how to get here, but perhaps I ______for her.
#63022
A
had to write it out
B
must have written it out
C
should write it out
D
ought to have writte it out
The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
#62939
A
should
B
must
C
would
D
can