Exercise 1: Provide the correct forms of the verbs in the brackets.

1. When I ______ (see) you tomorrow, I ______ (tell) you my news.

2. By the end of the month, the estate agent ______ (sell) twenty houses.

3. When I ______ (wait) for the bus, I saw my close friend.

4. ______ she ______ (study) English since she ______ (be) four years old?

5. ______ we ______ (study) while they are going out?

6. As soon as we ______ (get) there, we ______ (phone) for a taxi.

7. ______ he ______ (see) 10 mice when he ______ (come) into the room?

8. We went home when we ______ (finish) our work.

9. When I was going to the door, the phone ______ (ring).

10. I will go to the library before I ______ (do) the shopping.

11. At this time last night, I ______ (learn) while my father ______ (watch) TV.

12. He ______ (watch) TV when I came to see him.

13. He ______ (live) in New York for 4 years before he ______ (move) there.

14. We ______ (send) a report as soon as we ______ (finish) our work.

15. We ______ (wait) here until the rain ______ (stop).

16. He will go home as soon as he ______ (finish) his work.

17. At 11:30 tomorrow, we ______ (have) lunch at our friend’s house.

18. His health has improved since he ______ (return) from the hills.

19. The Chinese ______ (make) spaghetti dishes for a long time before Marco Polo ______ (bring) it back to Italy.

20. It is the first time he ______ (drive) a car.

21. I understand you ______ (have) an unpleasant experience at the weekend. What exactly ______ (happen)?

22. "Good night. It ______ (be) nice to meet you," he ______ (say) and ______ (go) off to his car.

23. I will graduate in June. I will see you in July. By the time I ______ (see) you, I ______ (graduate).

24. We ______ (already finish) that work by the time you get back.

25. When I arrived at the meeting, the first speaker just ______ (finish) speaking and the audience were clapping.

26. The traffic was very heavy. By the time I ______ (get) to Mary's party, everyone ______ (already arrive).

27. "You ______ (find) the key which you ______ (lose) yesterday?" "Yes. I ______ (find) it in the pocket of my other coat."

28. Tomorrow I'm going to leave for home. When I ______ (arrive) at the airport, Mary ______ (wait) for me.

29. Sarah has lost her passport again. It is the second time this ______ (happen).

30. When the alarm rang, Jack ______ (jump) out of bed quickly.

31. It's no use getting impatient. The plane ______ (not arrive) until the weather ______ (clear) up.

32. John and I ______ (study) at the same school and we ______ (be) great friends ever since.

33. Don't wait up for me. I can't tell when I ______ (be) back.