---Where’s Lucy? ---I’m not sure. She ________ in the school library.     
#76767
A
maybe
B
must be
C
may be
D
will be
推荐题目
I _____ have watched that movie --- it’ll give me horrible dreams.
#63539
A
couldn’t
B
needn’t
C
shouldn’t
D
mustn’t
Alex changed his mind at the last minute,otherwise we ________ an agreement.
#62310
A
should have reached
B
could have reached
C
can reach
D
should reach
—Can you sing or dance?     —_____.
#74695
A
Yes, I can
B
No, I can’t
C
I can sing
D
I like singing