【题目】—Sorry, do you mind if I smoke here?

—Yes,__________

A. you could

B. go ahead

C. I do

D. my pleasure

【题目】__________ that he wasn't happy with the arrangements, I tried to book a different hotel.

A. Perceiving B. Preventing

C. Puzzling D. Preserving

【题目】请改正下列短文中的错误。

A science theory is the result of a science method. 【1】 __________

Scientists look at the world and try to describe and explain how they see. First, they observe what they 【2】 __________

are interested in careful. To explain what they have seen, 【3】 __________

they build a theory about the way which things 【4】 __________

happened and whether it can predict future events. If what 【5】 __________

they are observing can be tested on a practical way, 【6】 __________

scientists will use experiments. But if, as Hawking, they 【7】 __________

are studying something which is too large or too difficult to 【8】 _________

observe directly, they will use a model to test the theory.

People who listen to Hawking's lecture sometimes find this 【9】 _________

difficult to understand him, because his thoughts and ideas

often seem as large as the universe he is trying describe. 【10】 __________

【题目】At the meeting place of the Yangtze River and the Jialing River __________, one of the ten largest cities in China.

A. lies Chongqing

B. Chongqing lies

C. does lie Chongqing

D. does Chongqing lie

【题目】The committee ______ seven members.

A. is consisted of B. consist of

C, consists of D. makes up of

【题目】__________ their timely help, we overcame the difficulties at last.

A. Thanks to B. Thanks for C. As a result D. Because

【题目】—Do you know the man __________ is talking with your father?

—Yes, he's our headmaster.

A. he

B. who

C. which

D. whom

【题目】Without facts, we can't form a worthwhile opinion, for we need to have factual knowledge ______ our thinking.

A. which to be based on B. upon which to base

C. which to base upon D. to which to be based

【题目】The poor had to ______ a living.

A. struggle against B. struggle for

C. struggle on D. struggle with

【题目】There is no doubt that by recycling textbooks, the cost of books will be __________ greatly.

A. increased

B. gathered

C. collected

D. reduced