题目内容
18.Susan ______ her homework at school every evening.( )| A. | don't | B. | don't do | C. | doesn't | D. | doesn't do |
分析 苏珊每天晚上都不在学校做作业.
解答 答案:D.考查否定句.句意"苏珊每天晚上都不在学校做作业.".do one's homework做作业,固定搭配.这里的do是实义动词,主语是Susan单数,一般现在时态,变否定句在实义动词前加doesn't.实义动词用原形do.答案是D.
点评 考查否定句.通常是在be动词,情态动词后加not.一般现在时态,主语不是第三人称单数用don't,主语是第三人称单数用doesn't.一般过去时态用didn't.还有其它用法需要牢记.
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