They played football on the playground.的否定句 一般疑問句.肯定回答 否定回答

題目：

They played football on the playground.的否定句 一般疑問句.肯定回答 否定回答

解答：

否定句：They didn't play football on the playground
一般疑問句：Did they play football on the playground?
肯定回答：Yes,they did
否定回答：No,they didn't
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