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    【题目】Sarah pretended to be cheerful, __________ nothing about the argument.

    A. says

    B. said

    C. to say

    D. saying

    【答案】D

    【解析】句意:Sarah假装很高兴，没有对这次争论进行评论。分析句子结构可知,此处是分词作伴随状语,故排除A项谓语动词形式;say与逻辑主语Sarah之间是主动关系，排除表示被动的B项；动词不定式作状语通常表示目的或出乎意料的结果，故C项与语境不符。故选D项。

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