题目内容
I was really anxious about you. You _______ home without a word.
[ ]
A.mustn't leave
B.shouldn't have left
C.couldn't have left
D.needn't leave
答案:B
解析:
解析:
|
should have done 含义为“应该做而没有做”;shouldn't have done的含义为“不该做而做了”。 |
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