帮我改肯定句、否定句、一般疑问句：He ate two burgers a moment ago.She danced and sang the day daybefore yesterday.I was a bad boy several years ago.They were very lovely in 2001.这些句子都要改.

帮我改肯定句、否定句、一般疑问句：He ate two burgers a moment ago.She danced and sang the day daybefore yesterday.I was a bad boy several years ago.They were very lovely in 2001.这些句子都要改.
帮我改肯定句、否定句、一般疑问句：He ate two burgers a moment ago.She danced and sang the day day
before yesterday.
I was a bad boy several years ago.
They were very lovely in 2001.
这些句子都要改.

帮我改肯定句、否定句、一般疑问句：He ate two burgers a moment ago.She danced and sang the day daybefore yesterday.I was a bad boy several years ago.They were very lovely in 2001.这些句子都要改.
He ate two burgers a moment ago.
He didn't eat two burgers a moment ago.
Did he eat two burgers a moment ago?
She danced and sang the day day before yesterday.
She didn't dance or sing the day day before yesterday.（ 注：否定句中的并列用OR)
Did she danced and sing the day day before yesterday?
I was a bad boy several years ago.
I wasn't a bad boy several years ago.
Were you a bad boy several years ago?
They were very lovely in 2001.
They weren't very lovely in 2001.
Were they very lovely in 2001?

He ate two burgers a moment ago. She danced and sang the day before yesterday.
He didn't eat two burgers a moment ago. She didn't dance and sing the day before yesterday.
Did he eat two burger...

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He ate two burgers a moment ago. She danced and sang the day before yesterday.
He didn't eat two burgers a moment ago. She didn't dance and sing the day before yesterday.
Did he eat two burgers a moment ago? Did she dance and sing the day before yesterday?
I was a bad boy several years ago.
I wasn't a bad boy several years ago.
Was I a bad boy several years ago?
They were very lovely in 2001.
They weren't very lovely in 2001.
Weren't they very lovely in 2001?

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1、He ate two burgers a moment ago。
否定句：He didn't eat two burgers a moment ago。
一般疑问句：Did he eat two burgers a moment ago？
2、She danced and sang the day day。
否定句：She didn...

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1、He ate two burgers a moment ago。
否定句：He didn't eat two burgers a moment ago。
一般疑问句：Did he eat two burgers a moment ago？
2、She danced and sang the day day。
否定句：She didn't dance or sing the day before yesterday。
一般疑问句：Did she dance or sing the day before yesterday？
3、I was a bad boy several years ago.
否定句：I wasn't a bad boy several years ago.
一般疑问句：Were you a bad boy several years ago？
4、They were very lovely in 2001.
否定句：They were not very lovely in 2001。
一般疑问句： Were they very lovely in 2001？

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否定句：He did not eat two burgers a moment ago.疑问：did he eat two burgers a moment ago?
否：She did not dance and sing the day day before yesterday
疑： Did she dance and sing the day day before yest...

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否定句：He did not eat two burgers a moment ago.疑问：did he eat two burgers a moment ago?
否：She did not dance and sing the day day before yesterday
疑： Did she dance and sing the day day before yesterday?
否：I was not a bad boy several years ago.
疑问：was I not a bad boy several years ago?
否：They were not very lovely in 2001
疑问：were They not very lovely in 2001？

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