听第二篇短文，回答第16~20小题。
16. What do the speaker's grandparents do in the morning at the festival?
A. Open presents.
B. Climb the mountain.
C. Prepare lunch.
17. What does the speaker's mum make for the festival?
A. Rice cakes.
B. Cookies.
C. Chrysanthemum wine(菊花酒).
18. When does the speaker visit the elderly?
A. In the afternoon.
B. At night.
C. In the morning.
19. What do the speaker and his friends do at the nursing home?
A. Clean the room for the elderly.
B. Do some shopping for the elderly.
C. Talk with the elderly.
20. What does the speaker think of the festival?
A. Tiring.
B. Boring.
C. Unforgettable.