l,m an engineer.【一般疑问句,否定回答】they like playing the violin.【一般疑问句,肯_英语解答

l,m an engineer.【一般疑问句,否定回答】they like playing the violin.【一般疑问句,肯定回答】the
oy is [swimming]【对划线部分提问】

人气：455 ℃　时间：2019-10-18 22:02:38

解答

Are you an engineer?
No,I am not.
Do they like playing the violin?
Yes, they do.
What is the boy doing?