1. am

2. doesn't study

3. aren't

4. is having

Ex 1 :

1 , am

2 , doesn't study

3 , aren't

4 , has

5 , have

6 , Does / live

7 , are

8 , works

9 , l.i.k.es

10 , lives

11 , rains

12 , fly

13 , fries

14 , closes

15 , tries / don't think 

16 , passes

17 , is / watch

18 , writes

19 ,  Do / speak

20 , doesn't live

Ex 2 :

1 , don't stay

2 , don't wash

3 , doesn't do

4 , don't go

EX 1:

1. am

2. doesn't study

3.arenn't 

4. had

5. have

6. Does _ live

7. are

8. works

9. s

10. lives

11. rains

12. fly

13. fries

14. closes

15. tries _ don't think

16. passes

17. is _ watches

18. writes

19. Do _ speak

20. doesn't live

EX 2:

1. Don't stay

2. Doesn't go

3. Doesn't do

4. Don't go 

- Hok T - 

EX1:

1. will                   6. Does she live               11. rains                                16. passed

2. doesn't            7. are                                12. fly                                     17. is....watch

3. aren't               8. works                            13. fries                                 18. writes

4. have                9. s                              14. closes                              19. Do you speak

5. have                10. lives                            15. tries...don't think               20. doesn't live

EX2: 

1. don't stay

2. don't wash

3. doesn't do

4. don't go

                                   MONG MIK ĐÚNG. CHÚC BN HOK TỐT ^^

1-am

2-doesn't study

3-aren't

4-is having 

5-have

6-does she live

7-are

8-is working 

9-s

10-is living

11-rains

12-fly

13-fries

14-is closing

15-have tried - don't think

16-passes

17-is - watching 

18-writes

19-Do you speak

20-Doesn't