Exercise 1:
17. This is my eldest **sisters' room**.
18. **Tom and Julie's father** are both doctors.
19. The students sent **each other** gifts on the last day at school.
20. The two girls teach **each other** to play volleyball.
21. Could you pass me **that** pen, please?
22. **Those** tall trees over there are the oldest in the park.
23. Come and sit on **this** chair next to me.
24. It's boring. There is **nothing** interesting to do.
25. **Somebody** has stolen my bike. I have to catch a bus now.
Exercise 2:
1. There are several countries that have a king and a queen. One is Thailand.
Answer: **B. Another**
2. Dolphins live in the sea but
Answer: **B. they**
3. Your cat is so cute and friendly... is completely naughty.
Answer: **C. Its**
4. Are you going to wear the blue or the grey suit to the interview? - The
Answer: **C. blue one**
5. Mary, is John, my new boyfriend.
Answer: **A. that**
6. We made this bookcase by
Answer: **A. ourselves**
7. Children never listen! I've told just ignore about the dangers of playing with matches but
Answer: **C. them/it**
8. I always look at myself in the mirror before I leave the house.
Answer: **C. myself**
9. Paul and Sally are here. The are waiting in the car.
Answer: **B. others**
10. We worked for two hours and then stopped to eat something.
Answer: **B. the other**