1. _____ is bad for our planet. A. Deforestation B. Sugar C. Animal D. tree 2. _____ pollution can cause breathing problems for young children. A. Soil B. Noise C. Air D. Water 3. A plane engine can make a lot of noise, so the new airport will increase ____ pollution here. A. A. Soil B. Noise C. Air D. Water 4. We can’t plant any trees because the level of ______ pollution here are very high. A. Soil B. Noise C. Air D. Water 5. You must _____ your teeth every day at least twice. A. do B. make C. sweep D. brush 6. You _____ to come if you don’t want. I can go on my own. A. haven’t B. don’t have C. mustn’t have D. haven’t have 7. I’m sorry but you ___ to leave this place because it is on fire. A. ought B. can C. could D. are able 8. I ______ write to Sarah. I haven’t written to her for long. A. Can B. must C. have to D. ought to 9. _______ you please turn down your radio, I can’t hear my television. A. Can B. Could C. Do D. both A and B 10. ______ have they been here? For two hours. A. How old B. How often C. How long D. How 11. We should keep our teeth _____ A. be clean B. to be clean C. clean D. cleanly 12. Come in and _____a seat. A. do B. give C. go D. have 13. Trang plays soccer very well. She is a _____ soccer player. A. good B. well C. skillfully D. bad 14. He practices _____the guitar every day. A. to play B. play C. playing D. to playing 15. My sister will be 16 _____ Sunday _____ A. on - May 25th B. on - May 25 C. in - 25th May D. in - May 25 16. ______ she comes, we can’t start the lesson. A. If B. When C. Until D. Unless 17. Every girl ought to learn ______ to cook. A. what B. when C. how D. where 18. ______20 September, 1529, five small ship set sail from Spain. A. At B. In C. On D. By 19. “Was the competition a success ?” “Yes, ............ people took part in it than usual”. A. more B. fewer C. less D. many 20. If she eats all the food, she ____ a stomachache. A. will have B. has C. could have D. should have 21. My parents _______ me to see Ho Chi Minh’s Mausoleum last summer. A. led B. took C. brought D. directed 22. I’m sure they were _____ lies. A. telling B. making C. doing D. saying 23. I’d like to mail this letter _______ my friend in the USA. A. for B. with C. to D. up to 24. We _________ to our new house on January 1st. A. transferred B. got C. removed D. moved 25. Fluoride toothpaste helps _________ tooth decay A. prevent B. for preventing C. preventing D. with preventing 26. Wear your hat. It will _______ your head. A. protect B. defend C. secure D. guarantee. 27. She added a little salt to the soup so it tasted _______ A. deliciously B. well C. good D. tastefully