缺词填空 根据短文内容及首字母提示补全单词（共10小题；每小题1分，共10分）
My best f_______ Betty is as slim as I．She is a pretty girl with short h______．Betty is very g______．She is willing to s_______ her things with her friends．She is also very h_____ and is ready to help people at______ time．She often helps me with my Physics and always gives s___【小7】__ to people on the bus．Betty likes singing, so she wants to be a s______ when she g_____ up．I h_______ her dream will come true．