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】

試題分析：考查情態(tài)動詞辨析。A可能；B必須；C應(yīng)當(dāng)；D需要，句意：盡管他總是考慮自己很多，但和其他人呆在一起時他可能是有幫助的。故選A

考點：考查情態(tài)動詞辨析

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