题目内容：

阅读下面材料，在空白处填上适当的内容（不多于3个单词）或括号内单词的正确形式。

Parkour (跑酷) is a sport which trains people to deal with any physical obstacles in their path. It is not a competition but a physical training. A person joining in parkour is called traceur. Traceurs run along a path and use only their bodies to deal with obstacles in the most efficient way. Parkour pays more attention to efficiency, 1.(make) it different from the similar practice of free running. Parkour 2.(common) includes running, jumping, climbing, rolling and other similar types of physical movements. Many teenagers think that parkour is quite3.cool sport. They have great interest in it.

The 4.(invent) of parkour can’t 5.(give) to one person because many people have worked on it. A french officer developed the earlier form of parkour. The term “parkour” was first introduced by David Belle and Sebastiar Foucan in the early 1980s. 6.that time, they were two teenagers. This sport7.(become) more popular in the 1990s when many films were made on it.

8.makes parkour different from other sports is its power to bring people together. It allows traceurs to forget the9.(society) and other problems, and makes a large group work and grow together instead of competing with each other. People can benefit from parkour as it can make them stronger. Still, it also influences one’s thought process by improving self-confidence and critical-thinking skills. In this way, parkour allows one to deal with 10.(difficulty) in daily life if he or she deals with them through parkour.