Put the verbs in the past perfect.
1. She ... ... (go) home by 4 p.m. yesterday.
2. The pupils ... ... (translate) only one text by the end of the lesson when the teacher collected their tests.
3. The boy ... ... (change) his T-shirt by that time.
4. Wher they came, the party ... already ... (begin)
5. He couldn't phone her because he ... ... (forget) her phone number.
6. ... you ... (receive) the fax message before you left the office?
7. ... she ... (do) her homework before she went to school?
8. What ... Martin ... (buy) before he took the bus?