11. His mother (teach). us English in 2008. 12. In 1788 he (write). his last great work in Vienna. 13. Last night my father (read). a book while I (learn) my lesson. 14. They (give) me the letter a few minutes ago. 15. Mr Brown (become). famous after he (have). some inventions. 16. They (build). the school in 1989. 17. After she (finish) her homework (go). to bed. 18. Before she (go) to the station, the train (leave) 19. By the time she (be) twelve, she (already, decide) on a career. 20. I can't help (laugh) at this hilarious comedy although it's the fifth times I've seen it. 21. What the lecturer is talking is not worth (hear). at all; as a result, almost all the audience are leaving the lecture room. 22. The examiner made us (show). our identification in order to be admitted to the test center. 23. We hope that the students themselves will enjoy (take)_ part in the projects. 24. Would you mind (buy). me a newspaper? 25. After (walk). for three hours, we stopped to let the others (catch) with us. 26. Would you like (have) dinner with me? 27. 1 (speak) to Mr. Brown before the lecture yesterday. 28. Please don't forget (buy) some juice on your way home. 29. We stopped (work) on the computer because we were tired. 30. The traffic was very heavy. By the time I (get) to Mary's party, everyone (already, arrive)