1 . People have no idea ______had happened on the plane.

A．how

B．what

C．which

D．where

3 . There is concern __________ the construction company that built the tower block had not followed fire safety rules. (用适当的词填空)

4 . 尽管面临诸多困难，他们最终还是成功地完成了那项任务。(despite) (汉译英)

5 . There is evidence________acupuncture began during the Stone Age, when stone tools called bian were used to press areas of the body. (用适当的词填空)

6 . Now that energy prices are rising so rapidly, further prices are very uncertain, and the risk a new investment depending on them may fail is greater.

A．by which

B．of

C．that

D．in that

7 . 有人提出不同意见，认为一些用户可能会对RealCine失望，因为虚拟现实毕竟不是真的。（汉译英）

8 . 阅读下面句子，在空白处填入适当的单词或用所给字母的正确形式填空，每空只填一个单词。
1. Fang Lang, one of the few lucky people in Titanic picked up by Lifeboat 14, was found ______________(float) on a door to which he had tied himself.
2. People who don’t have strong social relationships are 50% _________(like) to survive at any given time that those who do. Therefore, make good friends.
3. _________(get) over your fear of speaking English, you should first of all get over your shyness.
4. Have you ever had a task you need to complete but __________ urgent it may be, you just don’t get down to doing it?
5. It was then, however, that I saw something _________ lifted that weight off of my soul, made my face smile and made my heart feel happy again.
6. The desert was once a green land with huge trees, but they were cut down and that resulted in the city ____________(bury) by sand---what a pity!
7. __________ we should do about the increasing number of “borrowed words” in our vocabulary is something that deserves careful thought.
8. In developing countries like China and Brazil, sales of meat ________(double) in the last 20 years.
9. Before I seek advice from you, I had no comprehension _________ a company might try to fool people into buying a product or service.
10. _________ took them just three minutes to steal paintings by two world­famous artists.

9 . After the deadly collision, the relatives of the kids protected them from the knowledge_______         their parents had already passed away.

A．when

B．where

C．that

D．which

10 . The popular belief has been challenged after a recent research ________ cartilage(软骨) in human joints can’t repair itself.

A．where

B．whether

C．when

D．that