爱之链教学反思:初二英语

来源：百度文库 编辑：查人人中国名人网 时间：2024/04/29 17:26:01
He used to be late .
改为问句和否定句

Did he use to be late?
He used not to be late或He didn't use to be

Did he used to be late?
He didn't use to be late.

He didn't use to be late
Did he use to be late

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