Change the verb into the correct form:
1. I (study) Japanese before.
2. She (bake) a lot before she (open) her shop.
3. We (have) a lot of trouble because we (lose) our passports.
4. Brian (know) many people at the club because he (be) there many times.
5. They (study) English before they (move) to Canada.
6. You (enjoy) the movie because you (read) the book.
7. She really (like) him because he (help) her.
8. Amy (study) a lot before she (take) the test.
9. We (get) into the restaurant only because we (reserve) our places.
10. I (be) to India before 1986.
11. They (have) a lot of trouble before they finally (succeed).
12. Chris (own) that car for 5 years before he (sell) it.
13. Sharon (be) very sick until she (stop) eating junk food.
14. I (be) in Greece for 7 months before I (move) to Spain.
15. You (cook) a lot, because you (be) so hungry.