根据对话内容，用方框中所给单词的适当形式填空，每词限用—次，每空只写一词。

A: What's your favorite day, Eric?

B: I like Friday I have music and math on that day. They're my favorite .

A: Who is your music teacher?

B: Ms. Xu. She always games with us in her class.

A: That's great! But why do you like math? It's very difficult.

B: Oh, I think math is What's your favorite subject?

A: It's P.E. I think it's fun.

B: That's for I like it, too.