20. _________ we go on littering, the environment will become seriously polluted.

A. And       B. But        C. So       D. If

21. She is tired _________she stayed up late watching TV.

A. as        B. but        C. so       D. and

22. Tuan sighed ________________ when he heard that he failed the test.

A. sad        B. sadly        C. more sad       D. sadlier

23. They couldn’t send the parcel ____________ the post office closed on the national holiday.

A. because        B. although       C. so      D. or

24. When he was in university, he wasted much time _________ by Internet.

A. to chat         B. chat         C. chatting      D. chatted

25. He denied ________the shop.

A. breaking into       B. break into       C. breaking on    D. to break into

26. She suggested __________ for a swim.

A. going           B. go            C. to go        D gone

27. You don’t know French, __________?

A. does you        B. don’t you        C. do you         D. didn’t you

28. I don’t ________ the action films. I prefer documentaries.

A. likes watching       B. like watching        C. hardly to watch      D. hardly watching

29. _________ we were tired, we sat down beside the stream.

A. Because of           B. As             C. If   D. And

30. Tom doesn’t have to go to lecture, __________?

A. does Tom       B. did he          C. doesn’t Tom       D. does he

31. He finished _________ and sat down.

A. to speak          B. speaking          C. speak        D. spoken

32. I’ll write in Spanish finished _________ understand English.

A. because he don’t          B. because he doesn’t

C. because of he doesn’t      D. because of he don’t

33. Sue _______. She never seems to stop.

A. work continuously        B. works continuously

C. works continuous        D. continuously works

34. She ___________ when she heard the news.

A. can’t help crying          B. can’t helped crying

A. couldn’t help cry          D. couldn’t help crying

35. The children _________ surprised, were they?

A. weren’t           B. was          C. haven’t been        D. hasn’t been

36. Did you go to Jane’s party last night? Of course, I did. But now I regret _______ there.

A. go                B. gone           C. going        D. went

37. _______ the meat was cooked, I took it out of the oven.

A. Because of        B. Because           C. If         D. And

38. He looked me _______ when I interrupted him.

A. angry              B. angrily            C. hungry         D. thirsty

39. It’s essential that ________ here on time.

A. you are              B. you is           C. you were       D. you be

40. Bill puts money in the bank, ________?

A. didn’t he             B. did he             C. doesn’t he          D. does he

41. I’m leaving next week. And I think I’ll never forget ________ with you.

A. worked                B. work              C. to work           D. working

42. He _______ to find a job, but he had no luck.

A. tried hard               B. hardly tried          C. tried hardly          D. try hardly

43. It is necessary that the mother __________ by breast milk.

A. feed her baby up             C. feeds her baby up

A. bed her baby up            D. feeds up her baby

44. Maria is studying laws, _________?

A. isn’t Maria             B. is Maria           C. isn’t she          D. wasn’t she

45. Would you mind ________ your pet snake somewhere else?

A. put                 B. putting           C. to put          D. puts

46. ________ the manager is out today, I’ll sign the letter.

A. Because             B. If            C. Because of       D. But

47. My leg was hurting me. I ________ walk.

A. could hardly         B. can hardly         C. could hard        D. can hard

48. The driver was ________.

A. serious injured        B. injure seriously      C. seriously injured         D. injured seriously

49. You haven’t written to her_________, have you?

A. recently             B. never                C. late         D. recent

50. The boy likes ________ games but hates ___________ his lessons.

A. play/ study             B. playing/ study         C. play/ studying      D. playing/ studying