Mr. Smith________be in the bookstore because I saw him in his office a moment ago.

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问题 Mr. Smith________be in the bookstore because I saw him in his office a moment ago.

选项 A、must not
B、can’t
C、may not
D、needn’t

答案B

解析本题考查情态动词的选择。A项“不可以”；B项“不可能”；C项“不一定”；D项“不需要”。根据句意，B项最符合。故选B。

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成人本科学位英语

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