单项选择题

They () to have done such silly things.

A. had ought
B. hadn't ought
C. didn't ought
D. ought not

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单项选择题

I don't think he will come to our party, ().

A. will he
B. won't he
C. does he
D. do I

单项选择题

— Harry treats his secretary badly. — Yes, he seems to think that she's the () important person in the office.

A. less
B. least
C. more
D. most

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