听第二篇短文，回答第 16 至 20 小题。
() 16. What is the speaker doing?
A. Doing a report.
B. Having a lesson.
C. Giving an advertisement.
() 17. How many people will there possibly be in one cycling group?
A. 10 teenagers and 1 leader.
B. 12 teenagers and 2 leaders.
C. 15 teenagers and 1 leader.
() 18. How far will they cycle on most days?
A. About 20km.
B. About 30km.
C. About 40km.
() 19. Why does the speaker want you to join them in the holiday?
A. To get more information.
B. To see the mountains.
C. To be much healthier.
() 20. How can you book the place?
A. By visiting the website.
B. By sending an email.
C. By calling them at 6837 - 5785.

你有 10 秒钟的时间阅读下面的情景提示。之后你将听到两个问题，请根据情景提示的内容，用英语进行回答。注意：每个问题问两遍，每题的答题时间为 15 秒钟。
请看下面的情景提示：
沙漠的绝大部分是由沙子构成，在那里几乎没有降雨。
(1)
(2)
Listening 3