He wants to be an engineer when he grows up.改为一般疑问句His mother is a worker.对画线部分提问_________ They're English books.改为单数形式
问题描述：
He wants to be an engineer when he grows up.改为一般疑问句
His mother is a worker.对画线部分提问
_________
They're English books.改为单数形式
答
Does he want to be an engineer when he grows up?
Who is a worker?
It is a book
答
Does he want to be an engineer when he grows up?
Who is a woker?
It's an English book.
答
does he want to be an engineer when he grows up?
what does his mother do?
it is an english book
答
1.Does he want....？后面照抄
2.Who is a worker?
3.It is an English book.