III.Choose the best answer a, b, c, or d to complete the sentence. 16. My friends hate ................... out. They think it .....................a lot of money. A. eat- cost B.to eat- costs C. eating- costs D.eating- cost 17. My favourite hobby is................I love being outdoors with the trees and flowers. A.gardening B. fishing C. painting D. swimming 18.Students find swimming ....................because it can help them to keep fit. A. interesting B. is interesting C. it is interesting D. to be interesting. 19.I feel sick yesterday, ................... I didn’t go to school. A. too B. and C.so D. or 20.They think carving wood .................. because we can work with wood and make new beautiful product. A. is exciting B. is excited C. not exciting D. isn’t exciting 21. If you want to live long,you .................. eat much red meat. A.should B.needn’t C.have to D.shouldn’t 22. I have known her………………..two years. A. with B. for C. since D. in 23. He ......... many old books for 5 years. A. recycled B. is recycling C. has recycled D. will recycle 24. To prepare for the new year, I .................. my house again since last month . A. paint B. painted C. have painted D. has painted 25. They ………..the used plastic bottles with water several times yesterday. A. washed B. is washed C. are washed D. were washed 26. It is dangerous ............. quickly. A. driving B. drove C. to drive D. driven 27. I like ……………………..to my friends in my free time. A. talk B. talking C. talked D. to talking 28. Have you finished your work ………………….? A. yet B. for C. since D. ever 29. Traditional volunteer activities include ………… money for people in need, cooking and giving food. A. getting B. rising C. raising D. taking 30. These people live in the mountains, _________ they have a lot of fresh air. A. so B. because C. but D. or