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

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

_____ that she was going off to sleep, I asked if she’d like that little doll on her bed.

A．Seeing

B．To see

C．See

D．Seen

题型：不详难度：| 查看答案

The crowd cheered wildly at the sight of liu xiang, who was reported _______ the world record in the 110-meter hurdle race.

A．breaking

B．having broken

C．to have broken

D．to break

题型：不详难度：| 查看答案

______ by a greater demand of vegetables, farmers have built more green houses.

A．Driven

B．Being driven

C．To drive

D．Having driven

题型：不详难度：| 查看答案

There is nothing more I can try you to stay, so I wish you good luch.

A．being persuaded

B．persuading

C．to be persuaded

D．to persuade

题型：不详难度：| 查看答案

.--- What are you going to do next?
--- To write a science story about outer space ___ by Science and Technology Press.

A．published	B．being published
C．to be published	D．publishing

题型：不详难度：| 查看答案