1. Mr.Green (teach) has taught in this school since he (graduate) graduated from the university in 1986. 2. He (write) has written a book since last year. 3. Did you (watch) watch TV last night? 4. I (read) was read the novel written by Jack London several times before. 5. Someone (steal) stole my handbag on the bus. 6. Last month, I (be) were in the hospital for 10 days. 7. My father (not smoke) didn’t smoke for 5 years. 8. Did you (receive) receive any letter from your parents yet? 9. He (leave) has left home 2 weeks ago and we (not hear) didn’t hear from him since then. 10. A: Did you (speak) speak to Mrs.Baker yesterday?       B: No, I (not see) didn’t see her for a long time.       A: I (not can) didn’t can remember when I last (see) saw her. 11. My brother (join) has joined the army when he (be) was young. 12. Mr.Jackson (paint) has painted his house since last month. 13. Columbus (discover) has discovered America more than 400 years ago. 14. We (study) have studied French for 5 years at school but we (not learn) didn’t learn very much 15. A: Have you (teach) taught English before?       B: Yes, I have. I (teach) have taught English for three years in Hong Kong and when I (come) came back, I (start) have started to teaching the Kensington school of English and I (teach) taught there since then. 16. A: I (see) saw Jack last night.       B: Oh really? I (not see) didn’t see him for three months. How is he? 17. A: Have you (ever/win) ever won a competition?       B: Yes, I (win) have won a photographic competition in 2001. 18. Geoge (work) have worked at the university so far. 19. We (not live) haven’t lived in England for 2 years now. 20. When I (be) was a child, I (want) have wanted to be a doctor. mk làm như này đúng chưa mn. có gì sai xót thì mong mọi ng góp ý thêm

4. have read 
6. was 
7. hasn't smoked
8. Have you received 
9. left = have not heard 
10. have not seen 
could not remember
13. discovered 
15. started - have taught 
16. haven't seen 
17. Have you ever wun - won 
18. has worked 
19. have not been living 
20. wanted

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