7. My bike has been stolen
8. Our house was built ten years ago
9. She has written this novel for six months
10. I have not come here for 11 years
11. Mary, whose mother is seriously ill, is very sad
12. Because of the boring film, we go home early
13. He said that he was free that day but he would have to work the next day
14. They asked Nam if he could speak English
15. He suggest that I should plant some trees around my house to get more fresh air
16. Carol told Peter not to make so much noise
17. I haven't seen Nam for 3 years
18. She advised him to study harder to pass that exam