Mary__________my letter;otherwise she would have replied before now.A．has recei

题型：不详难度：来源：

Mary__________my letter;otherwise she would have replied before now.

A．has received	B．ought to have received
C．couldn’t have received	D．shouldn’t have received

答案

C

解析

注意单词otherwise引导虚拟语气。

举一反三

He’s working hard for fear that he__________.

A．should fall behind	B．fell behind
C．may fall behind	D．would fall behind

题型：不详难度：| 查看答案

—Is it good a look up every new word when I come across it in reading?
—No,You__________because you are likely to guess the meaning from the context.

A．can’t　　　　

B．mustn’t

C．don’t have to

D．ought not to

题型：不详难度：| 查看答案

Had the boy worked harder,he__________the exams.

A．must have got through

B．could get through

C．ought to get through

D．would have got through

题型：不详难度：| 查看答案

It rained a lot during their journey,so they__________have had a good time.

A．can’t

B．must

C．shouldn’t

D．might

题型：不详难度：| 查看答案

All the people started early so that they__________there in time.

A．got

B．was getting

C．could get

D．must get

题型：不详难度：| 查看答案