【題目】He __________present at the meeting this morning; he is on a business trip this week.

A. can’t have been

B. mightn’t have been

C. mustn’t have been

D. needn’t have been

【答案】A

【解析】考查情態(tài)動詞。表示對過去的推測：情態(tài)動詞+have done；該句句意：他不可能參加了今天早上的這個會議；他這一周在出差。表示把握很大的推測，故用A.

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