1. They talk (talk) about stickers.
2. Mary collects (collect) cassettes.
3. Tom and Sue buy (buy) two comics.
4. We hide (hide) behind a tree.
5. Uncle George goes (go) to the doctor's.
6. Our friends play (play) football in the park.
7. My mother goes (go) shopping.
8. He calls (call) my name.
9. They sit (sit) down.
10. Carol says (say) good bye.
11. She helps (help) Tom with the homework.
12. My sister lives (live) in a big house.
13. The children eat (eat) hamburgers.
14. Bill has (have) got nine posters.
15. I am (be) at home.