5. was she

6. has he

1. You aren't afraid of snakes,are you?

2.Ami isn't at home,is she?

3.You don't know French,do you?

4.This isn't yours,is this?

5.Mary wasn't angry,___________?

6.Bill hasn't had breakfast,________?

1. I can’t remember her name.
I wish I could remember her name.
2. We can’t live together forever!
I wish we could live together forever.
3. I can’t go to your birthday party.
I wish I could go to your birthday party.
4. The movie tickets are expensive.
I wish the tickets aren't expensive.
5. My aunts and uncles live far away.
I wish my aunts and uncles lived far away
6. My mother isn’t here to take me home.
I wish she was here to take me home
7. I don’t know the answer to this question.
I wish I knew the answer to this question.
8. I don’t have enough money to buy that bike.
I wish I had enough money to buy that bike.
9. They are pulling down this building next week.
I wish they aren't pulling down this building next week.
10. They don’t allow me to travel with them without my parents’ permission.
I wish they allowed me to travel with them... .

what did the weather like?

IV.    How long +is it since+ S +Ved/ V2……?= When + did+ S + V……?

1.  How long is it since you used the car?

=> When did you use the car ?

2.  How long is it since they moved here?

=>When did they move here ?

3.  How long is it since he bought that computer?

⇒When did he buy that computer ?

4.  How      long      is      it      since      she      heard      that      news?

⇒When did she hear that news?

5.  How     long      is      it      since      they      made      these      cakes? 

⇒When did they make these cakes ?

6.  When did he last saw this film?

How long is it since he last saw this film ?

7.  When did his father watch this news?

How long is it since his father watched this news ?

8.  When did you first see her?

=>How long is it since you saw her first ?

9.  When did you first know her?

=>How long is it since you knew her first ?

10.  When did you start working in that factory?

=>How long is it since you started working in that factory? 

- Trích mẫu thử.

- Cho các mẫu thử lần lượt vào quỳ tìm.

+Quỳ tím nào hoá đỏ: HCl

+Ko đổi màu quỳ tím: Na₂SO_4, NaCl, FeCl₂

- Cho Na₂SO₄ tác dụng với Ba(OH)₂ tạo kết tủa trắng.

PT: Na₂SO₄ + Ba(OH)₂ → 2NaOH + BaSO₄↓

-Cho FeCl₂ tác dụng với NaOH cho kết tủa màu xanh lam.

PT: FeCl₂ + 2NaOH → Fe(OH)₂ + 2NaCl

Vậy chất còn lại là NaCl.

1. They don’t come now, do they?

2. You know my friend, don't you?

3. Your father don’t come here, do he?

4. Your sister can speak German, can't she?

5. Mary come to party, doesn't she?

6. They do not know each other, do they?

7. He has a lot of books, doesn't he?

8. You have a new dress, haven't you?

9. John drink too much, doesn't he?

10. She sings very well, doesn't she?

11. Your friends leave, don't they?

12. They do not see you, do they?

13. He waits for her, doesn't he?

14. He plays the violin badly, doesn't he?

15. You go out with your girl friend, don't you?

16. John go away, doesn't he?

17. She meets you, doesn't she?

18. That boys runs very fast, don't they?

19. You learn English very quickly, don't you?

20. I can speak English very well, can't I?

21. We had better stay home, don't we ?

22. You need to answer the question, don't you?

23. You didn’t see me yesterday, did you?

24. The door is shut, isn't the door?

25. His brother has gone to Da Nang, hasn't he?

26. Perhaps, you are right, aren't you?

27. She swims better, doesn't she?

28. You ought to go home, do you?

29. There is a hole in your coat, isn't there?

30. Lan can speak English very well, can't she?

31. Ba wrote to her yesterday, did he?

32. Her husband doesn’t understand her, does he?

33. We can’t cross the street here, can we?

34. His sister isn’t at the party, is she?

35. This horse didn’t run very well, did it?

36. Your shoes aren’t very clean, are it?

37. Hoa is not very good at English, is she?

38. We can’t see you till next week, can we?

39. He wasn’t late last time, was he?

40. They didn’t give us very good cakes, did they?

41. They won’t like it, will they?

42. He hardly ever makes a mistake, does he?

43. You never drinks coffee, haven't you?

44. Nobody likes a play, do they?

45. She’d save money if she bought fresh food, wouldn't she?

46. She’s very funny, isn't she?

47. The area was evacuated at once, wasn't it?

48. It never works well, does it?

49. Mr. Smith usually remembers his wife’s birthday,doesn't he?

50. Nam ought to make a note of it, doesn't he?

52. There will be plenty for everyone, won't there?

53. Let’s go out for dinner, shall we?

54. That isn’t Bill driving, is he?

57. This won’t take you long, will it?

58. I’m too late, am i?

59. They think he is funny, isn't he?

60. no one is better cook than his mother, isn't they

1. have been taken