I. 

1. They (not see) haven't seen the film Titanic yet.

2. Tom (call) called his boss yesterday.

3. John (read) has read the letter from Mary already.

4. We (not begin) haven't begun to learn for the test yet.

5. I (meet) met Robert at the supermarket this morning.

6. Nancy (be) has been to Viet Nam several times.

7. I (not see) haven't seen your brother yet.

8. When (your father/ give up) did your father give up smoking?

9. My pen isn’t here any more. Someone (take) has taken it already.

10. The motorbike looks clean, (you/ wash) did you wash it?

II. 

1. My uncle (move) moved to Da Lat in 2005.

2. The Greens (be) has been to many countries in the world so far.

3. We (go)have gone to that village to do volunteer work several times.

4. We (spend)spended our summer vacation in Ha Long Bay last July.

5. Our teacher (explain) has explained to US how to use the printer already.

6. The postman (deliver) delivered the letter half an hour ago.

7. Mai (not finish) hasn't finished her homework yet.

8. I (visit) have visited our form teacher in the hospital already.

9. I (hear) heard the good news from Mary a few minutes ago.

10. They (not start) haven't start the project yet

I.

1. haven't seen

2. called 

3. has read

4. haven't begun

5. met

6. has been

7. haven't seen

8. did your father give up

9. has taken

10. did you watch 

II.

1. moved 

2. have been

3. have gone

4. spent

5. has explained 

6. delivered

7. hasn't finished

8. has visited 

9. heard

10. haven't started