1, came
2, have just sent
3, has worked
4, have finished
5, has written/ hasn't finished
6, have lived
7, have you seen
8, have waited
9, Has Bill arrived/ arrived
10, have known/ was
11, haven't seen/ was
12, studied
13, have had
14, was
15, haven't seen

1. She has come to London two years ago.

2. I have just sent the letter.

3. He has worked for that company for 5 years.

4. I have finished my course last year.

5. He has written a novel for 2 years but he hasn't finished it yet.

6. They have lived in HCM in 1990.

7. How many times have you seen him since he went to?

8. I have waited for the manager for 2 hours.

9. Has Bill arrived home yet? Yes. He has arrived three hours ago.

10. I have known him since he has been ten years old.

11. We haven't seen Mary recently. The last time we have met her was in April.

12. I have studied at Le Hong Phong high school from 1998 to 2000.

13. I have had four tests so far.

14. Where your parent have been last week?

15. We haven't seen Jack for a long time.

Bn kêu lm thì htht thì mk làm, tuy có mấy câu không hợp lí lắm nhưng mk theo lời bn á nha

                                                    ~học tốt~