Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence. 6. Mike is always proud _____ his success at school. a. on b. of c. at d. in 7. Many companies participated________ the trade fair. a. on b. of c. in d. to 8. Never put______ till tomorrow what you can do today. a. off b. over c. back d. away 9. They went on playing_______ it started to rain. a. though b. because c. but d. despite 10. In the 18th century, workers loved wearing jean because it did not_______ a. break off b. tear off c. wear out d. come out 11. We’ve got of time, so there’s no need to rush. a. very muchb. a number c. great deal d. plenty 12. Shut the window, _____ it’ll get too cold in here. a. unless b. if not c. otherwise d. though 13. If she_____ rich, she would travel around the world. a. would be b. is c. has been d. were 14. The polluted river is smelly and filthy. a. dangerous b. shallow c. dirty d. swollen 15. I wish you_____making that noise. It’s bothering me. a. would stop b. will stop c. stop d. can stop 16. I expect_______ a postcard from my pen friend in England today. a. to receive b. receiving c. to be received d. being received 17. _____ you tell me how to get to the nearest supermarket? a. May b. Could c. Do d. Should 18. She is ______ to lift such a heavy bag. a. not enough strong b. enough strong c. not strong enough d. strong not enough 19. The equipment in our office needs________ . a. to modernize b. modernizing c. modernized d. modernization 20. Computers _____ to do a lot of jobs these days. a. are used b. used to c. are using d. use GIẢI THÍCH GIÙM MÌNH VỚI NHA!!!!!!!!!!!!!!