1. Mary has vistited his grandparents. (thì HTHT, S số ít+has+V3/ed..)

2. Jack has played games on the computer. (thì HTHT, S số ít+has+V3/ed..)

3. John and Su have washed their car. (thì HTHT, S số nhiều+have+V3/ed..)

4. Andrew has repaired his bike. (thì HTHT, S số ít+has+V3/ed..)

5. Phil has helped Anne with Maths. (thì HTHT, S số ít+has+V3/ed..)

6. Brad and Louise have watched a film. (thì HTHT, S số nhiều+have+V3/ed..)

7. Tamara has talked to her best friend. (thì HTHT, S số ít+has+V3/ed..)

8. Bridgette has drawn a picture. (thì HTHT, S số ít+has+V3/ed..)

9. Carol has read a computer magazine. (thì HTHT, S số ít+has+V3/ed..)

10. Tom and Alice have been to a restaurant. (thì HTHT, S số nhiều+have+V3/ed..)