_________to reach them on the phone, we sent an email instead.A．FailB．FailedC．To

题型：不详难度：来源：

_________to reach them on the phone, we sent an email instead.

A．Fail

B．Failed

C．To fail

D．Having failed

答案

解析

句意：因为没有打通他们的电话，我们只好给他们发了一封电子邮件。句子的主语we和fail之间是主动关系，不能用过去分词，故排除B项，而A项是动词原形只能作谓语；C项不定式表目的；故D正确。

举一反三

He was busy writing a story, only ______ once in a while to smoke a cigarette.

A．to stop

B．stopping

C．to have stopped

D．having stopped

题型：不详难度：| 查看答案

I know a little bit about Italy as my wife and I ________ there several years ago.

A．are going

B．had been

C．went

D．have been

题型：不详难度：| 查看答案

The problems at the meeting tomorrow are really hard to solve．

A．discussed

B．to discuss

C．to be discussed

D．discussing

题型：不详难度：| 查看答案

Jane was asked a lot of questions, but she didn’t answer ______ of them.

A．other

B．any

C．none

D．some

题型：不详难度：| 查看答案

—Shall we go out for a walk?
—Sorry. This is not the right ____ to invite me. I am too tired to walk.

A．moment

B．situation

C．place

D．chance

题型：不详难度：| 查看答案