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600字范文 > She has a ruler but she an eraser.A doesn’t have B haven’t C don’t have

She has a ruler but she an eraser.A doesn’t have B haven’t C don’t have

时间:2022-03-23 12:15:35

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She has a ruler  but she an eraser.A doesn’t have B haven’t C don’t have

问题补充:

She has a ruler, but she an eraser.

A、doesn’t have B、haven’t C、don’t have

答案:

解析:在一般现在时态中,当句子中有行为动词时,应该用结构:当句子的主语为非三单形式时,要借助于助动词do,其结构为:主语+don’t 动词原形+其他;主语是三单时,其结构是主语+doesn’t+动词原形。当句子中没有行为动词时,要在be 动词后面加not。根据选择项的提示可知have是行为动词,且主语是she故选A。

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