Find and correct the mistakes.
PROSZĘ O SZYBKĄ POMOC
1. Marianne had locked all the doors before she had left the office.
2. My sister had phoned me to say that her boyfriend proposed to her.
3. The Vikings lived in this area hundreds of years ago.
4. How long had you think about adopting a cat before you finally decided to do that?
5. Did anybody help the injured man before the ambulance arrived?
6. I had no money to buy that beautiful dress because I had spent it all on holidays.
7.The consultant asked me who recommended their company.
8. Maggie couldn't ski because she had broken her leg a few days earlier.
9.Andrew had been tired because he had spent the whole morning in an important meeting.
10. Where did she work before she had started her career in teaching?