Ex1
1. Doesn’t she
2. Did he
3. Won’t they
4. Can’t she
5. May she
6. Shouldn’t we
7. Hasn’t she
8. Does he
9. Have you
10. Isn’t it
11. Did they
12. Aren’t I
13. Is it
14. Did  they
15. Isn’t it
16. Didn’t they
17. Isn’t it
18. Shall we
19. Will you
20. Will you
21. Isn’t it
22. Does she
23. Didn’t you
24. Does he
Ex2
1. Don’t they
2. Isn’t she
3. Will they
4. Isn’t it
5. Are there
6. Doesn’t he
7. Wouldn’t he
8. Are they
9. Have you
10. Isn’t it
11. Can’t they
12. Did they
13. Dit it
14. Aren’t I
15. Isn’t it
16. Aren’t they
17. Have you
18. Was it
19. Hadn’t he
20. Needn’t you
Ex3
1. Do you
2. Have they
3. Would you
4. Had he
5. Shall we
6. Isn’t it
7. Aren’t I
8. Isn’t there
9. Will he
10. Aren’t you
11. Have you
12. Didn’t you
13. Don’t they
14. Can’t you 
15. Could you 

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Câu hỏi đuôi

Đối với động từ thường (ordinary verbs)

Câu giới thiệu khẳng định, phần hỏi đuôi phủ định.

S + V(s/es/ed/2)….., don’t/doesn’t/didn’t + S?

Câu giới thiệu phủ định, phần hỏi đuôi khẳng định

 S + don’t/ doesn’t/didn’t + V….., do/does/did + S?

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Đối với động từ đặc biệt (special):

Là các động từ khi chuyển sang câu phủ định ta thêm NOT vào sau động từ, khi chuyển sang nghi vấn đưa chính động từ này lên trước chủ ngữ.

Câu giới thiệu khẳng định, phần hỏi đuôi phủ định.

S + special verb….. , special verb + not + S?

Câu giới thiệu phủ định, phần hỏi đuôi khẳng định

S + special verb + not….., special verb  + S?

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Đối với động từ khiếm khuyết

Câu giới thiệu khẳng định, phần hỏi đuôi phủ định.

S + modal verb…………., modal verb + not + S?

Câu giới thiệu phủ định, phần hỏi đuôi khẳng định

S + modal verb + not…………., modal verb + S?

EXERCISE I: Add tag questions to the following.

1. Lan enjoys watching TV after dinner, doesn't she?

2. Tam didn't go to school yesterday, did he?

3. They'll buy a new computer, won't they?

4. She can drink lots of tomato juice every day, can't she?

5. She may not come to class today, may she?

6. We should follow the traffic rules strictly, shouldn't we?

7. Your mother has read these fairy tales for you many times, hasn't she?

8. He seldom visits you, doesn't he?

9. You've never been to Italy, have you?

10. That's Bob, isn't he?

11. No one died in the accident, did they?

12. I'm supposed to be here, aren't I?

13. Nothing is wrong, is it?

14. Nobody called the phone, did they?

15. Everything is okay, isn't it?

16. Everyone took a rest, didn't they?

17. Going swimming in the summer is never boring, is it?

18. Let's dance together, shall we?

19. Don't talk in class, will you?

20. Sit down, will you?

21. This picture is yours, isn't it?

22. Hoa never comes to school late, does she?

23. You took some photos on the beach, didn't you?

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

EXERCISE II: Add tag questions to the following.

1. They want to come, aren't they?

2. Elizabeth is a dentist, isn't she?

3. They won't be here, will they?

4. That is your umbrella, isn't it?

5. There aren't many people here yet, are there?

6. He has a bicycle, hasn't he?

7. Peter would like to come with us to the party, wouldn't he?

8. Those aren't Fred's books, are they?

9. You have never been to Paris, have you?

10. Something is wrong with Jane today, isn't it?

11. Everyone can learn how to swim, can't they?

12. Nobody cheated in the exam, did they?

13. Nothing went wrong while I was gone, did it?

14. I am invited, aren't I?

15. This bridge is not very safe, isn't it?

16. These sausages are delicious, aren't they?

17. You haven't lived here long, have you?

18. The weather forecast wasn't very good, was it?

19. He'd better come to see me, hadn't he?

20. You need to stay longer, needn't you?

EXERCISE III: Add tag questions to the following.

1. You don't know where Ann is, do you?

2. They haven't seen this film, have they?

3. You wouldn't tell anyone about it, would you?

4. He'd never seen you before, had he?

5. Let's go out for a walk, shall we?

6. This is your book, isn't it?

7. I am supposed to be here, aren't I?

8. There is a meeting tonight, isn't it?

9. Tom won't be here late, will he?

10. You're tired, aren't you?

11. You haven't lived here long, have you?

12. You came in a sports car, didn't you?

13. These cakes look good, don't they?

14. You can speak German, can't you?

15. You couldn't do me a favor, could you?