听第二段对话，回答第13—15题。
13. Why did Carlos' family look unhappy?
A. Because the man was late.
B. Because the man didn't greet them.
C. Because the man gave a clock as a gift.
14. What is a proper gift for a Mexican family according to the dialogue?
A. A hug.
B. A clock.
C. Flowers.
15. What should you do if you're invited to a Mexican dinner?
A. Arrive 15 minutes late.
B. Arrive 15 minutes early.
C. Arrive on time.

13.C 14.C 15.A

Ⅲ. 听一篇短文。从题中所给的A、B、C三个选项中选出最佳选项。短文读两遍。
16. What was the main purpose of the “Clean-Up Day”?
A. To collect waste paper.
B. To plant trees and flowers.
C. To clean the streets and the park.
17. When did the students meet at the school gate?
A. At 7:30 a.m.
B. At 8:00 a.m.
C. At 8:30 a.m.
18. What did Group One do?
A. They gave out posters.
B. They cleaned the classrooms.
C. They picked up plastic bottles.
19. How did the local people feel about the students' work?
A. They were thankful.
B. They were surprised.
C. They were a little angry.
20. What does the speaker hope?
A. More people will join them next time.
B. The school will hold more such activities.
C. Everyone will protect the environment from now on.

16.C 17.B 18.B 19.A 20.C

Ⅳ. 听一篇短文。根据短文内容,写出下面表格中所缺的单词。短文读两遍。

21. south 22. travels 23. basketball 24. running
25. simple