6. I didn't recognise Lucy, because she had grown her hair very long.
7. The man told me that he had been to Russia a few years before.
8. Everything was white and beautiful, because it had snowed in the night.
9. Because I hadn't made an appointment, the manager refused to see me.
10. When I had done the washing up I sat down and read the paper.
11. My hands are dirty, because I have been repairing the car.
12. I have not been enjoying my job recently.
13. George has been helping me in the office since Tuesday.
14. I have been having a headache since this morning.
15. Anthony has been away for the last few days.