1.B
2. B
3. D
4. C
5.D
6.A
7.C
8. C
9. D
10. A
11. B
12. C
13. C
14. B
15. A
16. A
17. B
18. A
19. B
20. A
21. A
22. A
28. It started to rain when I was sitting on a bench in the park.
29. The concert was exciting at the beginning but it became boring at the end.
30. This smartphone was bought by my father last year.
31. The security officer allowed me to enter the school to take my book.
32. The last time I saw my father was one month ago