题目内容：

完形填空，阅读下面短文，从短文后各题所给的四个选项 (A、B、C和D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

Footracing(竞走) is a popular activity in the United States. It is not only seen as a compe- titive sport, but also as a _________  to exercise. Though_________  runners may spend months training to compete, other runners and walkers_________  not train at all.  _________not competing to win might run in an effort to beat their own time, or _________to enjoy the fun and exercise. People of all _________  , from those less than one year old to those in their 80s, _________ into this sport. The races are held on city streets, on college campuses,  _________ parks, and in suburban areas, and commonly 5 to 10 kilometers in   _________  .

The largest footrace in the world is the 12-kilometer Bay to Breakers_________ that is held in San Francisco every spring. This race_________  on the east side of the city near San Francisco Bay and ends on the _________ side at the Pacific Ocean. In 1993 there were 80,000 people   _________ in this race through the streets and hills of San Francisco. In the _________ are the serious runners who compete to win, and_________ might finish in as little as 34 minutes. Behind them _________   the thousands who take several hours to finish. In the back of the race are those who wear various clothing just for_________. There was a group of firefighters who were all _________in a long line and were carrying a fire—hose(消防水龙带). One year there was a wedding _________ , in which the bride dressed in a long white gown and the groom wore a tuxedo(晚礼服). They  _________ flowers to by-standers, and were actually married at some point along the route.

1.A. plan           B. design         C. way          D. approach

2.A. serious        B. amateur        C. famous      D. ordinary

3.A. must          B. might          C. could         D. should

4.A. Others       B. These          C. Those         D. Ones

5.A. simply        B. finally       C. partly        D. certainly

6.A. walks          B. ages          C. sorts         D. nations

7.A. turn          B. enter         C. break       D. look

8.A. across         B. over         C. through       D. on

9.A. size           B. length         C. depth        D. height

10.A. ground        B. city           C. race         D. ceremony

11.A. holds         B. goes           C. begins       D. carries

12.A. north       B. west          C. east          D. south

13.A. singing       B. helping        C. watching     D. running

14.A. beginning     B. course         C. front       D. process

15.A. who           B. what         C. which         D. as

16.A. stay          B. are          C. fall          D. is

17.A. medal         B. fun          C. win         D. prize

18.A. wrapped       B. followed     C. separated     D. tied

19.A. party        B. dinner         C. day           D. invitation

20.A. threw         B. presented      C. sold        D. donated