4. Ułóż zdania z podanych elementów . Zastosuj czas past perfect. 1. I / study / hard / before / I / take / test /. ______ 2. What / happen / after / i / wake up / ? _______ 3. By the time / we / leave the house, / plane / already / take off / . _____________ 4. They / have / their car / for a year / before / they / sell / it __________