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