20. The red skirt __________(cost) the girl forty yuan.

19. The farmers __________(pick) apples when I saw them.

18. My brother_____________(join) the League in 1997.

17. We ____________(learn) English for about three years.

16. He said that he _____________(ring) me up when he got there.

15. The Greens __________(watch) TV now.

14. The host ____________(interview) the little boy just now.

13. My mobile phone ___________(steal) on a bus last week.

12. Jim asked us what ___________(happen) in China in 1976.

11. Listen! They ____________(talk) about the new film.