问题

Mr. Peterson ____ haveforgotten to buy presents for his beloved family members. After all, it wasChristmas!
A:shouldn’t
B:mustn’t
C:can’t
D:needn’t
B:mustn’t
C:can’t
D:needn’t
正确答案是:
同类题型
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rry, can I use your computer for a while this afternoon— Sorry
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