1. The building where he lives is very old.
2. I will tell you something which you didn't know before.
3. I will never forrget the day when I met you.
4. Although it was cold, tom still went swimming.
5. John is very sad because he fails the final exam.
6. He never left the house where he had been born there.
7. I met the man who works in a bank.
8. Here are the letters which arrived this morning.
9. Although my grandfather is very old, he is still young at heart.
10. Tom gets a lot of money because he works hard.
