阅读下面短文，从每题所给的A、B、C、D四个选项中选出能正确回答所提问题或完成所给句子的最佳答案。

    Hello! This Chinese boy is Li Lei. He's 12. He's in No.3 Middle School. He's in Class 2. Grade 1.His good friend is Jack. He's an English boy. He's in Li Lei's school. He's in Class1.Grade2.Mrs Read is an English teacher in their school. She's an English woman. Jack has a secret(秘密)—Jack is their English teacher's son.