Choose the correct answer to complete20. It ______________ when I left Ireland. A. was rain B. was raining C. is raining D. raining 21. Andrea lives next door, so we ____________ see her. A. never B. often C. rarely D. seldom 22. We should avoid dumping waste ____ lakes and rivers to reduce water pollution. A. on B. into C. out D. by 23. Americans throw ___________ twenty-eight and a half million tons of plastic in landfills every year. A. in B. at C.to D. away 24. Residents in tall buildings in Ha Noi ran _____ their homes in fear. A. out of B. on C. to D. out 25. Con Dao National Park ______ a rich habitat for marine life. A. releases B. reduces C. provides D. reuses 26. The roads were slippery ___________ it started to rain. A. so B. as soon as C. when D. before 27. My grandmother ____________ goes to the market to buy food. She goes there every day. A. always B. never C. rarely D. sometimes 28. Do you like ____________ products? A. home-growing B. home-grew C. home-grown D. home-grow 29. _______ trees and burning forests destroy a lot of wildlife habitats. A. Watering B. Cleaning up C. Planting D. Cutting down 30. Do you know that ____ can cause pollution? A. littering B. releasing C. protecting D. keeping 31. You can _______ bargain at the supermarket because the prices are fixed. A. always B. often C. never D. sometimes 32. There were only a few houses left standing _____ the tornado hit. A. after B. before C. as soon as D. until 33. The shuttle bus ____ every 15 minutes to take customers to the parking lot. A. will leave B. leaves C. left D. was leaving 34. We _____ home economics next semester. We have music instead. A. didn’t have B. won’t have C. don’t have D. weren’t having 35. The announcement says that the sale _______ for just two hours, from 17:00 to 19:00 tomorrow. A. lasts B. will last C. lasted D. last 36. Phong: My uncle called this morning. A flood destroyed his house. Mark: ________ A. I’m glad. C. You’re welcome. B. I’m sorry to hear that. D. You’re very kind. 37. What were you doing when the volcano _______ ? A. erupted B. erupt C. erupts D. was erupting |