变否定句改为一般疑问句及回答 1 i was a teacher ten years ago2 they were brothers before3 lucy was happy yesterday4 i sang a song at the party 5 he played the piano 6 she danced very well
问题描述：
变否定句改为一般疑问句及回答 1 i was a teacher ten years ago
2 they were brothers before
3 lucy was happy yesterday
4 i sang a song at the party
5 he played the piano
6 she danced very well
答
1 Were you a teacher ten years ago?Yes,I was.
2 Were they brothers before?Yes,they were.
3 Was lucy happy yesterday?Yes,she was.
4 Did you sing a song at the party?Yes,I did.
5 Did he play the piano?Yes,he did.
6 Did she dance very well?Yes,she did.
答
你好,同学,很高兴回答你的问题 正确答案如下： 否定句：I wasn't a teacher ten years ago.They weren't brothers before.Lucy wasn't happy yesterday.I didn't sing a song at the party.He didn't play...