1. I met the girl WHO works in our restaurant.
2. He can't go to work today BECAUSE he is ill.
3. She says THAT her mother cooks very well.
4. My sister always does WHAT she wants.
5. I don't know WHETHER she works in the shop or at the salon.
6. He doesn't say WHEN the train arrives.
7. It was the town WHERE we had lived before.
8. They decided to finish the work THOUGH it was nearly midnight.
9. We decided to congratulate you on your birthday personally THAT'S WHY we have come.
10. Have you seen the book WHICH was on the table?