【正文】 several interesting discoveries when he _A_ a monkey recently. A) experimented on B) tried onC) experimented with D) tried with30. Their specialities _C_ from Chinese literature, history and philosophy to law, sciences, and traditional Chinese medicine. A) alter B) separate C) range D) differUnit 61. By the time you get to New York, I _______for London.A. would be leaving B. have already left C. am leaving D. shall have leftD2. The lawyer advised him to drop the ________, since he stands little chance of winning.A. event B. case C. incident D. affairB 3. Sometimes children have trouble ________ fact from fiction and may believe that such things actually exist.A. to separate B. for separating C. separating D. of separatingC 4. He is quite sure that it39。 D) carry of 28. There are strict rules _C_ the use of chemicals in food. A) reforming B) relating C) regulating D) registering29. People go to the church to _A_ God. A) worship B) pray C) respect D) admire30. The homeless _D_ from the flooded town were helped by the Red Cross. A) scouts B) saints C) beggars D) refugeesUnit 21. Jack’s shirt was burned by _C_ from the fire. A) spots B) spills C) sparks D) sprays2. The wood was so rotten that, when we pulled, it _C_ into fragments. A) broke off B) broke away C) broke up D) broke through3. We shall have to _A_ the meeting until next week, I’m afraid. A) postpone B) conduct C) replace D) last4. To our _C_, Geoffrey’s illness proved not to be as serious as we had feared. A) entertainment B) judgment C) relief D) relaxation5. The working of the machine _D_ that of the human brain. A) promises with B) petes with C) municates to D) corresponds to6. The attack was the latest in a series of border _B_ in that area. A) accidents B) incidents C) events D) occurrences7. The children will not be allowed to e with us if they don’t _D_ themselves better. A) direct B) accustom C) adjust D) behave8. The oppressed peasants rose up in armed _A_. A) revolt B) rebel C) chaos D) challenge9. I had to shake him several times to _A_ him from his sleep. A) rouse B) stimulate C) motivate D) prompt10. Three days after the trial the prisoner was _C_ secretly, and the body was buried under a tree inside the prison. A) murdered B) convicted C) executed D) punished11. His skin was _C_ from years of working outdoors. A) elastic B) clumsy C) coarse D) delicious12. Three people were killed in a headon _C_ between a bus and a car. A) collapse B) conflict C) collision D) crush13. Ruth has gone back to California _D_. She will not return to the East. A) for long B) before long C) ever since D) for good14. When the singer appeared, the audience started to _C_ loudly. A) claim B) crack C) clap D) crash15. I don’t know if you’ve heard, but there’s a _B_ going around the office that Mr. Smith is leaving at the end of the month. A) news B) rumor C) saying D) proverb16. I guess Jones didn’t have a chance to win the election. Almost all of the people in the city voted for his _A_. A) opponent B) candidate C) colleague D) advocate17. He was _D_ of his friend’s reputation. A) greedy B) controversial C) petitive D) jealous18. The newspaper uncovered a sex _D_ involving several government officials. A) shame B) conviction C) rumor D) scandal19. The dog waiting behind the gate looked so _B_ that I did not dare to go in. A) bold B) fierce C) wild D) harmful20. The workers there held a(n) _A_ to call for better working and living conditions. A) rally B) conjunction C) episode D) riot21. The protest march developed into a _D_ when the police tried to stop it. A) rebel B) strike C) violation D) riot22. He said he had _C_ the performance of the new model and was surprised at what he had seen then. A) endeavored B) demonstrated C) witnessed D) judged23. It is my _C_ wish that you use this money to further your research. A) intensive B) generous C) earnest D) voluntary24. He had been pletely exhausted but felt considerably _D_ after a meal and a rest. A) renewed B) recreated C) reshaped D) refreshed25. In Britain today women _A_ 44% of the workforce, and nearly half the mothers with children are in paid work. A) make up B) build up C) stand for D) conform to26. The garden is _D_ in a formal pattern. A) laid up B) laid off C) laid down D) laid out27. There are several possible explanations for the greater job stability in Japan _C_ the great job mobility in the United States. A) contrary to B) in regard to C) in contrast to D) with respect to28. Gasoline is processed from _C_ oil. A) raw B) rough C) crude D) tough29. New York _A_ second in the production of apples, producing 850,000,000 pounds this year. A) ranked B) occupied C) arranged D)