21. Sheila stopped ___________________  hello to her friends. (say)

22. The boy denied (beak) _________________ that window.

23. The following questions are easy ___________________  . (answer)

24. She told us where ___________________  the necessary material. (find)

25. Would you mind ___________________aloud  in here? (not talk)

26. Why don’t you try (supply) ____________ for that job. They are finding out a position of a secretary like you.   

27. He has just mentioned___________________(invest) ______________ money in that company. 

28. It was hard for her ___________________  smoking. (quit)

29. We were all happy about ________________  the New Year in Vienna. (celebrate)

30. It seems difficult ___________________  everything about the topic. (know)

21. Sheila stopped ___________________  hello to her friends. (say)

22. The boy denied (beak) _________________ that window.

23. The following questions are easy ___________________  . (answer)

24. She told us where ___________________  the necessary material. (find)

25. Would you mind ___________________aloud  in here? (not talk)

26. Why don’t you try (supply) ____________ for that job. They are finding out a position of a secretary like you.   

27. He has just mentioned___________________(invest) ______________ money in that company. 

28. It was hard for her ___________________  smoking. (quit)

29. We were all happy about ________________  the New Year in Vienna. (celebrate)

30. It seems difficult ___________________  everything about the topic. (know)

31. Just avoid ___________________  unnecessary mistakes. (make)

32. Can you imagine ___________________  my car before we leave? (finish)

33. Are you used ___________________  to work ? (drive)

34. She enjoys ___________________  . (paint)

35. I forgot ___________________  the door when I left. (lock)

36. I regret ___________________  you that your application was rejected. (inform)

37. We intend ___________________  you next spring. (visit)

38. I decided ___________________  more often. (exercise)

39. Mary keeps ___________________  about her problems. (talk)

40. Ireland doesn’t allow ___________________  in bars. (smoke)

41. Nancy seemed ___________________  disappointed. (be)

42. I can’t bear ___________________  so much responsibility. (have)

43. She is fond of ___________________  picnics. (have)

44. She promised ___________________  smoking. (stop)

45. They urge their citizens ___________________  more waste. (recycle)

46. John is thinking about ___________________  abroad. (study)

47. She considered ___________________  to New York. (move)

48. The aquarium needs ___________________  . (clean)

49. Tom agrees ___________________  me. (help)

50. She warned him against ________________  late. (be)

1,Mary is busy _____________ her work(complete)

2.  I don’t often object to (overwork)________________.

3.  Irregular verbs are difficult  ___________________  . (remember)

4.  He has difficulty  ___________________to English  . (listen)

5.  She enjoys ___________________  sweets. (give)

6.  The doctor encouraged his patients ___________________   healthy food. (eat)

7. She hasn’t got  her house ___________________ for ages . (redecorate)

8.  She is interested in ___________________  a doctor. (become)

9.  Everything in the house is said _______________ except for the television. (steal)

10. When I met her I couldn’t help ___________________  her. (hug)

11. My favorite hobby is ___________________  . (cook)

12. My father helped me ___________________  my homework. (do)

13. I’m sick of ___________________  hamburgers every day. (eat)

14. It is important ___________________  the net for more information. (surf)

15. She advised me ___________________  a doctor as soon as possible. (see)

16. I don’t feel like ___________________  English today. (study)

17. Isabel got Mike ___________________  her car (wash)

18. ___________________  sport every day is good for your health. (do)

19. At last they decided ___________________  the apartment. (rent)

20. I pretended ___________________  asleep. (be)

a,A=x²+x-2       b,B=4x-x²+5       c,C=9x²-6x+3      d,D=3x+x²-7      e,E=x²+y²-3x+2y+3     f,F=x²+y²-x+4y+5

i got him to repaint my house last week

=> i got

he could speak english well 

=> english

cho biết số số hạt proton notron electron trong nguyên tử của nguyên tố  là 40 . trong đó số hạt mang điện nhiều hơn số hạt không mang điện là 12 .

a, tính số hạt mỗi loại.

b, vẽ sơ đồ cấu tạo nguyên tử của nguyên tố x

1/1+2 +1/1+2+3+...+1/1+2+3+...+2016