将下面的句子重新排列，组成对话。

( ) Really? What's he like?

( 4  ) Is he quite?

( 1  ) I have a new math teacher.

( ) Great! He can play with us. Is he strict?

( ) No, he isn't. He's very active.

( ) He's young and strong. He's a university student.

( ) Yes, he is. But he's very kind.