1. Before / Peter / go / university /,/ he / take / gap / year.
Before Peter went to the university, he had taken gap for year
2. Where / you / be / before / you / come / home.
Where had you been before you come home.
3. There / be / many / trees / along / street / before / people / cut / them / down.
There had been many trees along the street before people cut them down.
4. Jim / be / very / upset / before / Mary / cheer / him / up.
Jim he'd been very upset before Mary cheered him up.
5. She / tell / me / yesterday / she / not / finish / her / assignment / yet.
She told me yesterday thật she hasn't finished her asignment yet
6. What / happen / after / Jim / propose / to / Jane?
What happened after Jim proposed to Jane?
7. You / eat / dinner / before / you / come / here?
Had you eaten dinner before you come here?
8. Peter / travel / a lot / before / his leg / seriously / injure / in / accident.
Peter had travel a lot before his leg was seriously injured in the accident