（阅读二）选择正确答案。
    Jack is a teacher of English. He is not young but he is not old. He has a round face and black hair. He is tall. There are fifty students in his class. They all like him. Now it's in the afternoon. Look some students are studying in the classroom. Jack is there too. Jack helps them to study English. He is a good teacher and he is a good friend of them all.