问题

The windows must have taken you quite a long time that day——RightThey for weeks

A:haven’t been cleaned
B:hadn’t been cleaned
C:didn’t clean
D:haven’t cleaned

正确答案是：

同类题型

When I feel blue , I prefer ________some books _______myself up.

doesn’t like pop music, does she —_____ She is a fan of classical music

Mr. Zhang has changed a lot.–So he has. He spends more time than he used to _______ games with his daughter.

They got married and ________in Shanghai

下列各句的文言句式与例句相同的一项是（　　）例句：回也非助我者也