There used to be a lot of trees.变为否定句

学习 时间:2026-10-10 07:35:48 阅读:5884
There used to be a lot of trees.变为否定句

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隐形的牛排

会撒娇的大炮

2026-10-10 07:35:48

There usedn't to be a lot of trees。或There didn't use to be a lot of trees。加油!不明白再问!