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【题目】Amy has to look after her sister on Sundays. (改为否定句)

Amy______to look after her sister on Sundays.

【答案】doesn’t have

【解析】

句意:艾米星期天得照顾她妹妹。

根据题意是变成否定句,这里是一般现在时态,含有情态动词have to,主语是第三人称单数,变成否定句要借助助动词does+not+动词原形。故答案为doesn’t have

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