Complete the sentences with the correct verb forms (the Past Simple Tense----- the Past Perfect Tense).
1. Tom ________________(to eat) an ice-cream before his mother_________ (to cook) dinner.
2. I___________________(to do) my homework before my mum ___________(to come) home.
3. Kate__________ (to give) me the book which she________________ (to buy) the day before.
4. I_____________________ (to finish) my homework by seven o'clock.
5. I ____________________ (see) his pictures before I ________________(visit) the museum.
6. Pedro ___________________(learn) English before he _____________(go) to England.
7. Mr Jones _______________(be) a teacher before he _____________(become) a journalist.