she does her homework and usually swims or takes a walk为何swim和take还加sdoes已经表示出了第三人称单数

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she does her homework and usually swims or takes a walk为何swim和take还加sdoes已经表示出了第三人称单数

she does her homework and usually swims or takes a walk为何swim和take还加sdoes已经表示出了第三人称单数
she does her homework and usually swims or takes a walk为何swim和take还加s
does已经表示出了第三人称单数

she does her homework and usually swims or takes a walk为何swim和take还加sdoes已经表示出了第三人称单数
因为这是一个并列句,这句话中does,swims,以及takes是三个并列的谓语动词,所以依据英语中关于一般现在时态对谓语动词的语法规则,这三个谓语动词都要加s
注：关于一般现在时态的语法,即当时态是一般现在时态时,且主语是第三人称单数时,谓语动词要加s或es
不知我说的能否让你明白,不懂可继续追问

因为and和or表示并列，do、swim和take都是动词，都要用第三人称单数的形式。

问友 给你 一个好记的方法 只要 看到 he she it 在现在时 动词都要加s，如果是一般疑问句 或者特殊疑问句 助动词要加s，如果一般现在时没有看到动词或者动词有s。
希望能帮助您 特别是考试的 时间 很管用

and 和or 是表示并列的连词，其前后的语态要一致，does 表示第三人称单数swim 和take 后也要加s，主语都是she是第三人称单数，英语要讲究句子平衡。

它是个一般现在时的并列句，每个动词都要加 /s/.
比如： Su Hai goes to bed at nine and gets up at 6.
Tom has lunch at 11:30 am and has dinner at 7 pm

do homework是写作业，跟swim 和take是并列关系，所以都要用第三人称单数那为啥 Does he have a ping-pong ball? have不变第三人称单数因为这里的have a pingpond ball没有跟does 成为并列关系，而成为助动词的do 后面要接动词原形，而你写的第一句话里do不是助动词而是在短语中我写的句子咋改一般疑问句？？？...

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do homework是写作业，跟swim 和take是并列关系，所以都要用第三人称单数

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