Lucy’s colour ____ blue because she likes to be the leader, so it ____ red.
#77269
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
-Must I make the writing plan now? - No, you______. You______ finish it tomorrow.
#74957
A
needn’t, must 
B
don’t have to, may
C
mustn’t, may
D
mustn’t, must
––__________ I smoke here?–– No, you __________.
#77064
A
Must; can’t
B
Do; can’t
C
Can; can’t
D
Can; don’t