( ) 26. This passage is most probably from .
A. an advertisement B. a travel journal
C. a weather report D. a science magazine
( ) 27. Typhoons often happen .
A. in the hot season B. in the cold season
C. only in China D. under the sea
( ) 28. In which order does a typhoon happen?
a. The wind moves faster than 30 metres a second.
b. The air moves quickly, making wind.
c. The sun makes seawater hot.
d. The air gets warmer and moves higher.

( ) 29. Which of the following is true according to the passage?

( ) 30. When a typhoon comes, we'd better NOT .