EXERCISE 6 Choose the best answers to complete the sentences : 1. They try to imitate the wing and shape of animals in nature to produce parts of veicles. The underlined word has the closest meaning to: A. irritate B. irrigate C. paste D. copy 2. What do you think is the most useful invention in medicine ? A. I don’t think it is useful B. This is because people use a lot of penicillin C. Perhaps it is the discovery of penicillin D. Just by chance 3. In order to be taken away and used everywhere, modern inventions have a tendency (khuynh hướng) to be small and ................ A. import B. coastal C. airport D. portable 4. Even the best invention may have both ..................... and drawbacks. A. benefits B. disadvantage C. advantaged D. benefited 5. “I started working for the Charity Center 5 years ago and now I’m still working here” has the closest meaning to: A. I have started working for the Charity Center 5 years ago C. I have worked for the Charity Center since 5 years B. I have started working for the Charity Center for 5 years D. I have worked for the Charity Center for 5 years 6. People have used vaccination to prevent diseases ............... a long time. A. for B. since C. when D. as 7. Brian has inspired thousands of students across the country since he .................. from a pedagogical university. A. graduate B. graduating C. graduated D. graduation 8. Jim has stayed at home .................... last week. A. for B. since C. when D. as 9. Scientists have researched into effective ways to treat this disease ................... last year’s epidemic (dịch bệnh) A. for B. since C. when D. as 10. This robot is very versatile, as it can be used to perform many different tasks. The underlined word has the closest meaning to: A. multipurpose B. limited C. inflexible D. purposeless 11. This athlete .................. a number of international awards since 1990. A. wins B. won C. has won D. have won 12. The Internet has changed the way we purchase, interact and research since it ................ A. invent B. was invented C. invented D. be invented 13. Our hen ................. for nearly 10 days so we have no eggs in our fridge now. A. did not lay B. has not laid C. have no lain D. has not lay 14. More than 40 patterns on silicon surfaces .................. with that paintbrush (cây cọ sơn) so far. A. printed B. were printed C. have printed D. have been printed 15. Choose the answer which needs correcting: A number of students regestered this course since last September A B C D 16. Choose the answer which needs correcting: They participated in social activities at the castle for the past few years. A B C D 17. The Jet engine has had ...................... on life since the twentieth century A. a great impact B. an important affacts C.an important part D.great significance 18. ................... the technological revolution is opening up a whole new world, many people are worried by it. A. However B. Dispite that C. because D. Although 19. She left a message ....................... I could know where to find her A. so that B. so as to C. for D. in order 20. Have a nice weekend ! - .................................. A. Ok. Yes, please B. Thank you. The same to you C. It’s not very long now D. No, thanks ______THE END______