Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage. Everglades National Park officially opened in ______.

A. put on several cards and read through every day
B. kept in front of the woman while she is studying
C. divided into small ones and distributed to specific days
D. sorted out from the material which should be reviewed

A. 14 or 15 minutes on foot.
B. 14 or 15 minutes by bus.
C. 40 to 45 minutes on foot.
D. 40 to 45 minutes by bus.