1. When I was a child, I used to collect stamps.

2. most people like travelling.

3. world is still chaning.

4. And life is changing too.

5. We picked up children from school.

6. I like intelligent people.

7. I like people I work with.

8. Kate is interested in music.

9. I think I'll pass exam.

10. water, especially during bad weather, may be very dangerous.

11. My grandpa was killed during Second World War.

12. She can play piano very well.

13. When was computer invented?

14. I think that government should rule more effectively.

15. Life isn't easy for unemployed.