1. People of all ages in the world are interested in using the Internet
2. If she spends more time learning English, she will pass the examination easily
3. Rice is grown in tropical countries
4. They last saw their parents 3 months ago
5. I wish I could go to the party with you
6. I asked the tourists if they were going to Phong nha cave the following day.
7. He used to learn English at school and university.
8. Because sometimes he has to write letters in English.
9. He thinks English is very useful and interesting.
10. summer
11. plane
12. climbed
13. in
14. different
15. increasingly
16. a /id/#/t/
17. d /iz/#/s/
18. the
19. d. Yes, I’d love to
20. d.between
21. b, so
22. b, traditional
23. a. compulsory
24. b haven’t seen
25. c. went
26. b. to do
27. c. to stay
28. washes
29. will give
30. watching
31. had