B. Thousands of residents kick football to keep slim.

C. Local restaurants use olive oil to replace butter.

D. Government officials persevere in physical exercise.

16. A. Students are encouraged to walk or ride to school

B. Students are allowed to ride bicycles in school libraries.

C. Parents are offered devices to monitor children's walking time.

D. Fruits are provided for those who are addicted to online games.

Questions 17 through 20 are based on the following passage.

17. A. Neither of them can find a suitable game.

B. They are both enthusiastic about games.

C. Good games cost a large amount of money.

D. They often go Dutch when buying gifts.

18. A. It includes fantasy role-playing.

B. It doesn't have an actual ending.

C. It is an expensive online game.

D. It is something like a racing game.

19. A. Players have opportunities to make new friends.

B. Players can have face-to-face communication.