根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Should Good Sportsmanship Be Taught in School?
Almost everyone feels that it is important for young people to win fairly and show respect toward others．Should good sportsmanship, then, be taught in school? Critics do not think so．     1    Presented here are the most important benefits of teaching sportsmanship．
Teaching good sportsmanship and having a positive attitude in activities like sports, class elections, and science fair competitions are critical to success in school．    2     Acting calmly under pressure helps young adults succeed not only in sports but also in life．
     3    A person cannot play by the rules if he or she does not understand what the rules are．Knowing the rules also applies to other activities．If students enter a science fair competition, for example, they must follow the guidelines． Those who know the rules are much more likely to succeed．When students learn sportsmanship, they discover, how knowing the rules relates to achievement．
Good players become skilled at handling responsibility．When people accept responsibility, they achieve their best．Positive thinkers, moreover, influence others, especially those who are struggling with a problem．A gifted basketball player, for example, might teach skills to a less-talented player．Helping others raises the performance of the entire team．The team, consequently, could reach new heights and set new records．     4    Those who do not practice sportsmanship pass off responsibility．For them, if an opportunity is lost, it is someone else' s fault．When students participate on a team, they benefit by learning to accept responsibility, encourage others and own up to（认错） mistakes．
Sportsmanship is a winning idea．It must be taught in school．Students need direction to become good sports"．Students will be responsible for their own actions and will have a positive influence on others．As students enter the workforce, businesses benefit．The community also benefits because these students will someday become leaders．     5   

A．We need to educate students about how sportsmanship pays off for everyone．

B．However, the stronger argument favors teaching good sportsmanship．

C．Sports help young adults learn how to team up with others．

D．Good sportsmanship also means admitting mistakes．

E．Activities involving winning or losing can be tense．
F．It is natural that players should be eager to win．
G．Good team players know the rules of the game．