Jack,you return the book to the library ,___?改反义疑问句怎么改

问题描述:

Jack,you return the book to the library ,___?改反义疑问句怎么改

这是祈使句,说话人希望Jack能够尽快把书归还图书馆.Jack还没有换,所以应该用 will you? don't you? 是错误的.
再看下面,如果已还,就是
Jack, you returned the book to the library, didn't you?