III

1. have never watched

2. watched

3. has read

4. read

5.  had

6. have had

7. haven't seen, saw

8. has rung

9. met, became

10. hasn't drunk

IV

1. have seen

2. have finished

3. have lived

4. has just washed

5. have discussed

6. has never been

7. have known

8. have learnt

9. have been

10. have stayed

C. Reading

I

1.A

2.B

3.C

4.A

5.B

II

1.C

2.B

3. A

4. B

5. B

6. B

7. C

8. A

9. B

10. C

Chúc bạn hok tốt

III

1we never have watched...
2 watched

3 has read

4 has read

5 had

6 have had

7 haven't seen.....saw him

8 was rang

9 have met....became

10 hasn't drunk

IV

1 has seen 

2 have finished

3 have lived

4 just has washed

5 the students have discussed

6 has never been

7 have known

8 have learned

9 have seen

10 have stayed

V

1 have -> has

2 finish-> finished

3 forget -> have forgeten

4graduates ->has graduated

5  i am trying -> i have been tried

6 not come -> hasn't came

7 reads -> has read

8 forgets -> forget

9 is -> was

10 studying -> studied

C READING
I
1 A

2B

3C

4A

5C

II

1C

2B

3A

4B

5B

6B

7B

8A

9B

10C