1. Tom has seen this film before.

2. I have already finished my exercise.

3. How long have they lived here? They have lived here since 1990.

4. My father has just washed his car.

5. The students have discussed the question recently.

6. Mary has never been  to Hanoi.

7. We have known each other for 5 years.

8. So far we have learnt five lessons.

9. We have been pen pals for a long time.

10. They haven't said here since last week.

11. Bob has seen this movie before.

12. Sandra has lent her brother $ 200 so far.

13. Rashid   has just passed his driving test.

14. Karen has studied Italian for three years now and is still studying.

15. The teacher has already told to be quiet

1) has seen

2) I have aldready finished

3) how long have they /have lived

4) has just washed

5) have discuss

6) has never been

7) have known

8) have learnt

9) have been

10) haven't stayed

11) has seen

12) has lent

13) has just passed

14) has studied

15) has aldready told