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什么时候用do和does,请举例说明,它们的否定形式是什么?

题目详情
什么时候用do和does,请举例说明,它们的否定形式是什么?
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答案和解析
据人称和单复数的不同而有字形的变化.第一第二人称,以及第一.二.三
人称的复数时,都用 do .
第三人称单数时,用 does( he does she does it does )
例如:I do my homework on Sunday.
You do your homework on Sunday.
We do our homework on Sunday.
You do your homework on Sunday.
They do their homeworkon Sunday.
He does his homework on Sunday.
She does her homework on Sunday.否定形式是don't,doesn't