Choose a, b, c, or d that best completes each unfinished sentence; or that best substitutes the underlined part. 1. IIe has just graduated .........................Business Administration. a. in​b. from​c. for​d. at 2. Now we use more and more natural resources than we did in.........................past. a. a​b. an​c. the​d. no article 3. Hard as he is trying, he cannot.........................his classmates. a. keep in mind​b. catch up with​c. take up​d. took charge of 4. When acids.........................with metals, they form salts. a. react​b. create​c. invent​d. discover 5. Many scientists still wonder whether the.........................which astronauts have to experience when they are in out space influences their health or not. a. weight​b. weightless​c. weightlessness​d. weightlessly 6. After every semester some best students are always.........................prizes and scholarships. a. prevented​b. devoted​c. obtained​d. awarded 7. Vaccinating is the best .........................of some certain infectious diseases. a. prevent​b. prevention​c. preventing​d. preventor 8. The noise made me incapable of .........................​ ​​ a. competition​b. publication​c. concentration​d. compensation 9. Everybody shows their deepest sympathy on the ......................... of the flood victims. a. die​b. death​c. dead​d. dying 10. ......................... diamonds are unstable form of carbon. a. A​b. An​c. The​d. No article 11. Faraday was known for designing ingenious experiments, but did not ......................... a good mathematics education. a. accept​b. receive​c. achieve ​d. compound 12. Marie Curie was born ................ November 7, 1867. a. in.​b. from​c. at​​d. on 13. Computer models help to determine whether a particular area is likely to flood. a. make up​b. find out​c. take over​d. put up 14. Let me give you a little .................................about the president of the company. a. specialization​b. concentration​c. background​d. degree 15. He behaved like an adult. I think he is more.................... than the other boys at his class. ​a. intelligent​b. mature​c. ambitious​d. developed UNIT 4: 6. Low ..........of animal fat generally leads to risk of heart diseases. A. consume​B. consuming​C. consumption​D. consumer 7. I am .......... A. in the tenth grade​B. at the tenth grade​C. at the grade ten​D. in the grade 10 8. Betty is not as intelligent as any child who is at the same age. She has some perceiving troubles. She is .......... A. dump​B. deaf​C. mentally retarded​D. lisp 9. Her suggestion met with strong .......... . Her workmates did not agree with her to some things. A. opposition​B. determination​C. condition​D. consumption 10. Disabled children with special ..........needs arc taken good care to develop both mentally and physically. A. educate​B. education​C. educator​D. educational 11. In our modern time, there are still many farmers and workers living poor conditions. A. at​B. in​C. for​D. within 12. After the terrible traffic accident, ..........injured were taken to ..........hospital immediately. A. an / the​B. no article / a​C. the / no article​D. the / the 13. Most people in the town are interested in the ..........of photographs taken by some disabled children, which are displayed in the town hall. A. exhibition​B. expenditure​C. passion​D. feature 14. Paul seemed very proud ..........his success when everybody congratulated him ..........what he had got. A. for / with​B. as / through​C. over / in​D. of / on 15. Don’t be worried too much. Things will certainly inn prove gradually. A. immediately​B. right now​C. little by little​D. quickly 16. He makes money by raising poultry and cattle. A. creates​B. earns​C. produces​D. spends 17. ..........helps us to acquire knowledge. A. Educate​B. Education​C. Educating​D. To educate 18. I was sitting in a café ..........the afternoon when I saw my friend. A. in​B. on​C. at​D. by 19. The President ..........his deep sorrow over the bombing deaths. A. regretted​B. expressed ​C. taught​D. gave 20. He is completely ..........in his new book on photography. A. contented​B. bored​C. satisfied​D. interested