1. Mike had visited his friends before he went abroad for two months. 
2. Paul had been repairing his car for two days before he called the mechanic. 
3. Pamela had been dancing for two hours before her boyfriend arrived. 
4. Melany had cleaned her house by the time the guests arrived. 
5. My brother had been apologizing before I felt angry with him. 
6. The athletes had run around the stadium for some time before they were stopped by their coach. 
7. The pirates had been escaping before the rescue team arrived
8. The sales manager (describe) the advantages of his product for about half an hour before I agreed to buy some samples. 
9. I (wake up)before my alarm clock rang. 
10. The kids (make) a lot of mess before their mother came back home from work. 
11. The teacher (correct) our tests for several minutes by the time the lesson started. 
12. Susan (work over)her thesis for two months before her supervisor told her that she was on the wrong path.
13. You (leave) the party by the time everything happened. 
14. Jack (play) online games for an hour before I came. 
15. The new students (wait)in the classroom for 15 minutes before they realized that it was the wrong classroom. 

Complete the sentences with the correct form of the verbs in brackets.
Use contractions where possible.

1. Peter was Sally’s best friend. She (know) him all her life.
2. The children were wet because they (play) football in the rain.
3. We were very hungry because we (not / eat).
4. I was delighted when I found my keys. I (look) for them for hours.
5. She was exhausted because she (work) since eight o’clock that morning.
6. Everything was white because it (snow).
7. The passengers were cross because the airline (lose) everyone’s bags.
8. I (not / see) Jacob for several years, but I recognized him immediately.