Ответ:
2. When we'd (we had) bought some chicken, we made dinner.
3. When my parents had gone out, i got home.
4. After the sun had come out, we arrived at the beach.
5. After i had taken my bike apart i cleaned every piece.
6. When it had got dark, we arrived at the hotel.
7. After i had spoken to my dad, i applied for the job.
8. When she had read the letter, she began to laugh.
Past Perfect — had +V³(-ed)
Past Simple — V²(-ed)