1. I (wait) have been waiting for two hours, but she (come) hasn't come yet.

2. He (write) has written a book since last year.

3. How long have you ( learn ) learnt English ?

4. Tom (already finish) has already finished his homework.

5. I (read) have read the novel written by Jack London several times before. 

6. Mai (never be) has never been in Ha Noi. 

7. She (study) has studied Korean for two years. 

1. How many times you (see) have you seen him since he went to Edinburgh?

2. We are from French. We (be) have been there for twenty years.

3. I am sorry. I (forget) have forgotten that girl's name already.

4. Mai (lost) has lost her dictionary.

5. I (wait) have waited for the manager for two hours.

6. Have you (ever, see) ever seen a lion?

7. I (work) have worked very hard for the exam.

8. I (live) have lived here since 1970.

9. Have you (be) been to the zoo?

10. I'm afraid you (look) have looked at the wrong one.

11. Why are the police here? What (happen) has happened?

12. Please stay for dinner, Jane (cook) has coocked a lovely meal.

13. He (learn) has learnt English for three years, but he can't even read a newspaper yet.

14. My teacher (teach) has taught English at this school for six years.

15. Michael (study) has studied English for six month now.

16. Up the present, George (do) has done good work in this class.

17. Our present boss (work) has worked in this company all of his life.

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Chúc bạn học tốt!