根据对话内容，在空白处填写适当的话语（话语可能是一个句子，也可能是一个短语或一个词），
使对话完整。
Molly: Do you like (1)____________?
Tracy: Certainly. Playing tennis is my favorite.
Molly: Are you allowed to practice every day?
Tracy: (2)_____________. My father used to be a professional athlete. I practice it for half an hour every day. Molly: You're so lucky.
Tracy: What about you?
Molly: Well, my parents don't let me practice running (3)____________ school days.
Tracy: They might think that (4)_____________ your schoolwork.
Molly: If you want to succeed, you'll have to give up something.
Tracy: (5)____________.