阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空（每空不多于3个单词）。

    Today I received a sweet letter from Brianna, one of my "cookies". It was wonderful to hear her. You see. I taught kindergarten, I called all sweet children "cookies". Brianna said that every day she would walk into kindergarten and see a smile my face. I named them "cookies" because I always feel that children can bring great happiness and (excite) to my life. I still feel that all children are the (great) joy I could ever have.

    So far I (teach) children for over 35 years. All my children were are now a great joy of my life. (hope), I feel very lucky to be able to use my life's talent to teach children and have fun ( do) it every day. I am able to spread my wings and help my "cookies" to spread their wings.