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He has a ball.(改为否定句和一般疑问句 并作肯定,和否定回答.

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He has a ball.(改为否定句和一般疑问句 并作肯定,和否定回答.
He has a ball.(改为否定句和一般疑问句 并作肯定,和否定回答.
常把has作为实义动词看待,其中has体现三单,故借助助动词does.
否定句:He doesn't have a ball.
一般疑问句:Does he have a ball?
肯定回答:Yes, he does.
否定回答:No, he doesn't.