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过去式的句子改成否定的时候单词要不要去ed?

来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/11/06 08:48:28
过去式的句子改成否定的时候单词要不要去ed?
My dad studied at Cambridge University.
改成否定句是
My dad didn't studied at Cambridge University.
还是My dad didn't studi at Cambridge University.
1 My dad studied at Cambridge University.
2 Chloe wanted some new trainers.
3 Mum drank her coffee quickly.
4 We met our friends at the cinema.
5 I knew the answer to the teacher's question.
6 Mum and dad bought me an MP3 player for my birthday.
过去式改否定
要去
1 My dad didn't study at Cambridge University.
2 Chloe didn't want some new trainers.
3 Mum didn't drink her coffee quickly.
4 We didn't meet our friends at the cinema.
5 I didn't know the answer to the teacher's question.
6 Mum and dad didn't buy me an MP3 player for my birthday
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