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Though he is always thinking much of himself, he ______ be helpful when staying with others.

A. can B. must C. should D. need

A

【解析】

试题分析:考查情态动词辨析。A可能;B必须;C应当;D需要,句意:尽管他总是考虑自己很多,但和其他人呆在一起时他可能是有帮助的。故选A

考点:考查情态动词辨析

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