Look at what you have done to my new book.You_____more careful with it.A.must have been B.might have been C.should have been D.ought to be

Question

Look at what you have done to my new book.You_____more careful with it.
A.must have been B.might have been C.should have been D.ought to be

Answer 1

C
这是虚拟语气的句子
看你把我的书弄成了什么样子.你本该更小心些.