题目内容
20.He has to get up early,too.(改为否定句)Hedoesn'thave to get up early,either.
分析 --他也必须很早起床.
--他也不必早起.
解答 答案:doesn't;either.考查否定句.由has第三人称单数.可知是一般现在时态,主语是he第三人称单数,含有实义动词,变否定句在实义动词前用doesn't,too改为either.答案是doesn't;either.
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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