They usedto borrow english books from the library改一般疑问句
问题描述:
They usedto borrow english books from the library改一般疑问句
答
Did they use to borrow English books from the library?
答
他们曾在图书馆借英语书
答
Did they use to borrow English books from the library?
Used they to borrow English books from the library?