问题

Guess what! I have got A for my term paper.— Great! You _____ read widely and put a lot of work into it..
A:must
B:should
C:must have
D:should have
B:should
C:must have
D:should have
正确答案是:
同类题型
Who is the little boy in the picture— It’s me. The picture 10 years ago.
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is no excuse, ________, for hurtingher feelings.
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