—How long do you suppose it is he arrived here? —A week or so．A．whenB．bef

题型：不详难度：来源：

—How long do you suppose it is he arrived here?
—A week or so．

A．when

B．before

C．after

D．since

答案

解析

略

举一反三

Sally, a shy girl, never speaks in public _______ she is asked to, never!

A．until

B．unless

C．even though

D．as though

题型：不详难度：| 查看答案

I don’t know why you’re worried about it. ________, it’s none of your business.

A．What’s more

B．In other words

C．After all

D．Worse still

题型：不详难度：| 查看答案

We can’t help you ____ you tell us what’s wrong.

A．Since

B．Unless

C．If

D．When

题型：不详难度：| 查看答案

The doctors have done ______ they could ______the child.

A．whatever; to save	B．everything ; save
C．all what; to save	D．all which; save

题型：不详难度：| 查看答案

The reason _____he has just given for not coming to the meeting is______ he missed the bus..
A which; that B. why; that C. . for which; because D. that; why

题型：不详难度：| 查看答案