It seems that he has some difficulty in _______ red from green; what’s wrong with his eyes?

A. recognizing         B. discovering

C. distinguishing       D. dividing

 They _______ finding a solution to prevent the river being polluted.

A. set up        B. set about

C. set out        D. set off

 The teacher phoned the student several times, but couldn’t_______ .

A. get out            B. get over

C. get together        D. get through

 When he caught sight of someone falling into the water, he_______ into it to help hurriedly.

A. looked       B. turned

C. burst        D. dived

1. 他告诉我个消息：他所有的艰苦工作终于有了回报。

He told me the news ______________. (pay)

2. 有些学科，例如数学和物理很难学。

Some subjects, ______________, are very difficult to learn. (such)

3. 他康复的希望还没有逝去。

______________ is not gone yet. (recover)

4. 我们是否继续做这个实验的问题已经解决了。

The problem ______________ has been solved. (continue)

5. 故事是这样的：威廉·泰尔用箭射杀了国王。

______________William Tell killed the king with an arrow. (go)

6. 在公共场所禁止吸烟的建议是必要的。

The suggestion ______________ is necessary. (forbid)

7. 我们应该考虑学生们的要求，学校图书馆应该提供更多的关于大众科学的图书。

We should consider the students’ request ______________ on popular science. (provide)

8. 多年后与我的伯父重逢是一个难忘的、让我永远珍惜的时刻。

Meeting my uncle after all these years is an unforgettable moment, ______________. (treasure)

9. 他成功的事实证明他的能力。

The fact ______________ proves his ability. (successful)

10. 会议上提出了一个问题，我们是否有足够的钱进行我们的研究。

The question came up at the meeting ______________ for our research. (enough)

11. 人们接受了他的建议，因缺少工具而将工作推迟到下周。

His advice ______________ next week as a result of lack of tools is acceptable. （postpone）

12. 他在这封信中许诺他永远也不会因任何事而沮丧。

Along with the letter was his promise ______________. （cast）

13. 一个令人温暖的想法突然袭来，他实际上是支持我的。

A warm thought suddenly came to me ______________. （favor）

14. 他经常问我一个问题：我们是否会达到这个标准。

He often asked me the question ______________. （attain)

15. 3天前一位来自中国的学生获得了联合国奖，这是一个让人激动的消息。

______________ a student from China won a UN prize three days ago. （it）

16. 有迹象表明，MP4在年轻人中越来越受欢迎。

There are signs ______________ young people. （popular）

17. 北京的房价是否下降还有一些疑问。

There is still some doubt ______________. （go）

18. 很多人选择住在乡下却在城里工作，这一问题仍在讨论中。

The question ______________ but to work in the city is still under discussion. （choose）

19. 这些年地球正变得越来越热这一事实已使许多科学家焦虑。

The fact has worried many scientists that ______________ these years. (become)

20. 明天是汤姆的生日。在哪里举行派对你有什么想法吗?

Tomorrow is Tom’s birthday. Have you got any idea ______________? （hold）

1. The fact ______ he is a model teacher is well-known.

2. Word came ______ his poem won the first prize.

3. There’s a feeling in me ______ we’ll never know what a UFO is—not ever.

4. I have no idea ______he is.

5. There is some doubt ______ John will come on time.

6. Have you any idea ______ he was so rude?

7. The thought came to him ______ maybe the criminal had fled the city.

8. This is our only request ______ this should be settled as soon as possible.

 He won the first prize in the competition named Super Star. Years of patience and hard work had at last__________.

A. put off             B. paid off          C. taken off           D. kept off

 The choice of players for the team seems completely__________.

A. abundant            B. arbitrary

C. ambitious           D. aggressive

 Though it’s clear that smoking has a bad __________ on people’s health，my father still can’t give it up.

A. result           B. impact

C. end             D. practice

 If you are always__________by such kind of feelings, you will never succeed.

A. turned down           B. cast down

C. taken down            D. put down