Fill in the missing forms of the verbs.

think ...

... drank ...

sit ...

... lost

have ...

... heard ...

... slept ...

... found

say ...

flown ...

... read ...

... gave ...

tell ...

... taken ...

... understood

come ...

... got ...

wear ...

... forgotten

1. thought thought

2. drink drunk

3. sit sat sat

4. lose lost

5. had had

6. hear heard

7. sleep slept

8. find found

9. said said

10. fly flew flown

11. read read

12. give given

13. told told

14. take took

15. understand understood

16. came come

17. get got

18. wore worn

19. forget forgot