变一边疑问句,肯定回答,否定回答,变否定句,根据画线部分提问要两种 1 I was ｛a student two years ago

1.I was a student two years ago.
Were you a student two year ago?Yes,I was.No.I wasn't.
I wasn't a student two years ago.
What did you do two years ago?
When were you a student?
2.He played basketball last Sunday.
Did he play basketball last Sunday?Yes,he did.No,he didn't.
He didn't play basketball last Sunday.
What did he do last Sunday?
When did he play basketball?
3.There were some books on the table yesterday.
Were there any books on the table yesterday?Yes,there were.No,there weren't.
There weren't any books on the table yesterday.
What were there on the table yesterday?
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