The river used to be so clean 1.改为否定句 2.改为一般疑问句

The river used to be so clean 1.改为否定句 2.改为一般疑问句
The river used to be so clean
1.改为否定句
2.改为一般疑问句并做两种回答

若靊 1年前已收到1个回答举报

Yvonne601 幼苗

共回答了12个问题采纳率：100% 举报

1.改为否定句 The river didn't use to be so clean
2.改为一般疑问句 Did the river use to be so clean
两种回答 Yes,it did.
No,it didn't.

1年前

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