题目

Your mother_________, however, say that to us that day. A. does  B. did  C. is doing   D. was doing 答案：B 解析: 根据句意及that day 可知谓语动词用一般过去时。其中的did为强调用法,表示“的确，确实”，后面必须接动词的原形，而且要用在肯定句中。

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