根据句意及首字母或汉语提示完成单词 1. They are planning to r________ some money for charity. 2. —What does the s________ mean? —It means “No Swimming”. 3. He spends ________(几个)hours every week helping others. 4. Let’s go to the football game and ________(欢呼)for our school team. 5. Miss Green ________(自愿做)to teach kids to learn English in her free time.