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。

    Lillian Hanson, college student, expected to graduate in about two (year) . What made Mrs Hanson (difference) from her classmates was her age—73 years old.

     Mrs Hanson never (forget) the dream of (get) higher education. When the children grew up, she tried again and succeeded. In class on her first day, when she introduced (her) and explained why she was there and what her aims were, all the other (student) stood up to give her a warm welcome.

    Among the challenges, Mrs Hanson found that the hardest part of going back to school her age was sitting in class for a long time. , she said she would stick to her dream no matter how difficult it was.