根据短文内容和所中文提示，在空白处写出单词的正确形式，每空限填一词。

    As middle school students, we should not only know how to protect (我们自己), but we should know how to help people in trouble. Zhang Qiang is the boy who can help himself and others.

    Zhang Qiang is a (有残疾的)student. There is something. (有毛病) with his left leg. But he never gives up. He often does (志愿者)work on weekends. For example, he tells stories to those lonely old people in the old people's home. Although it's difficult for him to walk to school, he keeps on doing so. At school, he gets on well with his classmates and teachers. He always gets good grades. He says, " I should (依靠)on myself and try my best to help others.