3. Complete the sentences with the Past Simple and the Present Perfect:

11. She caught (catch) a cold last Monday.

12. They have not bought (not/buy) a new computer yet.

13. I have just helped (just/help) my little brother to draw a horse.

14. Granny baked (bake) apple pies last Wednesday.

15. She has already washed (already / wash) her skirt.

16. We wrote (write) a dictation two days ago.

17. My aunt has bought (buy) a new car last week.

18. I have never painted (never / paint) the fence before.

19. The dog has just eaten (just / eat) a piece of meat.

20. His uncle went (go) to London last week.