Question

【题目】—Has Mary finished writing her article?

—No, it ________ before class was over.

should be finished

should finish

should have finished

ought to have been finished

Answer 1

【答案】D

【解析】ought to/should have done sth.本应该做某事，而实际上没做，含有责备的意味。It指的是article，和finish之间是被动关系，所以选D项。