根据短文内容及首字母提示，填写所缺单词，并将答案填写在相应位置上。

Chuck Wall teaches management and human relations at Bakersfield College. He walked into class one day and told his students that their h       was to perform one act of random(任意的) kindness. His students did not understand the assignment(任务), but the professor would not answer their questions. He e      his students to find it out for themselves.
One week later, the students entered the classroom excited to s     their stories. One student told of distributing blankets to the homeless, another had contacted a long, lost friend, and another student r     that he had helped a dog to find its owner. Students were energized(激励) by the homework assignment and wanted other people to be kind too. W   the support of local businesses, the students made stickers to put on cars that invited people to do something k  for others. They sold the stickers and decided to donate the money to a center for the blind –not surprising as Professor Wall is blind.
Since then, s    kindness activities have been organized in schools all over the world. Many schools organize a Random Acts of Kindness Week, a    November 13, to celebrate World Kindness Day. Some schools use each day of Random Acts of Kindness Week to perform d  kind acts, such as making a new friend, helping someone, doing community service, or raising money for a charity. Students learn to c    other people and think about how small actions can make the world a better place.