41. It has been a national memorial since 1925, ___________?

42. The monument doesn’t show the bust of President Clinton, ___________? 43. George Washington was the first President of the United States, __________?

44. You can speak English, ___________?

45. I am your best friend, ___________?

46. The sun is shining, ___________?

47. They haven't seen him for ages, ___________?

48. She visited her grandmother, ___________?

49. Susan and Peter arrived late yesterday, ___________?

50. She wasn't there, ___________?

51. Sheila has gone to the supermarket, ___________?

52. I will help you, ___________?

53. You shouldn't do that, ___________?

54. The thief was arrested yesterday, ___________?

55. The computer is broken, ___________?

56. Our English teacher is very nice, ___________?

57. I am a doctor, ___________?

58. Susan caught the bus, ___________?

59. They drew an elephant, ___________?

60. The student didn't do the homework, ___________?

61. You didn't go to school yesterday, ___________?

62. I am not a nurse, ___________?

63. She doesn't cook well, ___________

1. Murat gets up late, ___________?

2. Your car is not cheap, ___________?

3. You couldn't help me, ___________?

4. You weren't at the party last night, ___________?

5. There is a museum in this city, ___________?

6. You have never been to Peking, ___________?

7. I didn't do anything wrong, ___________?

8. They helped us a lot, ___________?

9. Get out of my sight, ___________?

10. Let's have a drink, ___________?

11. Lisa has lost her ID, ________?

12. We are friends, ___________?

13. Shout up, ___________?

14. Good idea, ___________?

15. You must give up smoking, ___________?

16. No one can help you, ___________?

17. Don't do it, ___________?

18. Dave is your cousin___________?

19. Kevin will come tonight, __________?

20. I'm clever, __________?

21. She is collecting stickers, __________?

22. We often watch TV in the afternoon, __________?

23. You have cleaned your bike, __________?

24. John and Max don't like Maths, __________?

25. Peter played handball yesterday, __________?

26. They are going home from school, __________?

27. Mary didn't do her homework last Monday, __________?

28. He could have bought a new car, __________?

29. Mr. McGuinness is from Ireland, __________?

30. The car isn't in the garage,___________?

31. You are John,___________?

32. She went to the library yesterday,___________?

33. He didn't recognize me, ___________?

34. Cars pollute the environment, ___________?

35. Mr. Pritchard has been to Scotland recently, ___________?

36. The trip is very expensive, ___________?

37. He won't tell her, ___________?

38. Hugh had a red car, ___________?

39. The Mount Rushmore National Memorial Park is in Keystone, _________? 40. The rock was a sacred Indian site once, ___________?

a) (x+3)^3-x(3x+1)^2+(2x+1)(4x^2-2x+1)=28

b) (x-1)^3 - 4x(x+1)(x-1)+3(x-1)(x^2+x+1)=3x^2+10