阅读短文，选择正确答案。 There are four people in the twins' family. They are the twins, their mother and their father. The twins' names are Lucy and Lily. They are fourteen. They are in the same class in No. 3 Middle School and they are all good students. Their father Mr. King is a teacher. He's thirty-nine. He teaches English in a school near his home. Their mother Mrs. King is a doctor. She works in a hospital. Now, they are all at home. They are happy. 1．There are ______ people in the twin's family. [     ] A．three B．four C．five D．six 2．Mr King is a ______. [     ] A．worker B．teather C．doctor D．student 3．Mrs King works ______. [     ] A．in a school B．in a factory C．in a hospital D．at home 4．How old is Mrs. king? [     ] A．Thirty. B．Thirty-nine. C．Thirty-two. D．I don' t know. 5．The twins are in ______ middle school. [     ] A．No. 1 B．No. 2 C．No. 3 D．No. 4