1. Last night, we (watch) was watching television when the power (fail)failed
2. We (be)will have been in this class for 4 years next September.
3. When we came in, they (prepare) were preparing the meal for us.
4. There (be) have been many changes in our village in the past few year.
5. Think carefully. I'm sure you (remember) will remember his name.
6. After ancient Greek athletes had won a race in the Olympics, they (receive)received a simple crown of olive leaves.
7. They (build)built that bridge when I (be)was there last year, they (not finish)haven't finished it yet.
8. As soon as my parents came, we [go]had gone out for dinner.
9. l (search)have searched everywhere for the pen I (lose)lost yesterday.
10. "What you (do)are you doing at the moment, Ann?" "I (pack)am packing. I (catch)is going to catch a plane to London tomorrow morning.
11. Since I left Venezuela six years ago, I (return)have returned to visit friends and family several times.
12. When my parents (arrive)arrive for a visit tomorrow, they will see our baby for the first time.
13. Don't worry. I (finish) will have finished the report by 10 o'clock.
14. I'll return Bob's pen to him next time I (see)see him.
15. "I [go]am going out to buy a morning newspaper." "But it (rain)is raining now. Why don't you wait until the rain (stop)stops?"
16. Whenever I travel abroad, I (forget)forget something I need.
17. Hurry up or you (be) will be late for class.
18. He (be)has been to the theater three times this month.
19. Hurry up or the film (be)will have been over before we (get) get home.