根据下面短文内容，在短文的空格处填上一个恰当的词，使短文完整，通顺。
One day, I am telling my mother about my friends in my school. My mother _ me,” Sue, who is your best friend?”
“Jill and Jaime. __ are in my class.”
“What about your sisters Karen and Cindy? ___ can’t they be your best friends?”
“Because they are ____ sisters. We are often not happy because of some food and clothes. How can they be my best ___? We all have our own(自己的) friends ____ school.”
“Yes, but they can be your friends,__ . Friends may come and go, but your sisters will always be there for you.” Says my mother. Then I understand that sisters are lifelong(终身的) friends.
Now we often ____ shopping, visit parents and go to the movies together(一起). I know that my sisters are also my best friends.