Just imagine performing such an opera as Turandot in the Forbidden City---there _____ be a better setting! 
#62610
A
mustn’t
B
shouldn’t
C
couldn’t
D
needn’t
推荐题目
We         arrive at six. But I’m sorry we are late. 
#63290
A
should
B
were supposed to
C
must
D
ought to
I was really anxious about you. You _______ home without a word.
#63535
A
mustn’t leave
B
shouldn’t have left
C
couldn’t have left
D
needn’t leave