---Look! The light is still on. Is Mr Wu working in his office?---No, it _____ be Mr Wu. He has gone to Nanjing for a meeting. 
#74102
A
needn’t
B
mustn’t
C
can’t
D
wouldn’t
推荐题目
Johnny, you      play with the knife; you     hurt yourself.
#63075
A
won’t; can’t
B
mustn’t; may
C
needn’t; must
D
can’t; should
You ______ to the party if you’re so busy.
#76821
A
don’t need come
B
not need coming
C
needn’t come
D
need not to come
You _________ to eat snacks in the classroom.
#74907
A
shouldn’t
B
had better not
C
oughtn’t
D
needn’t