阅读理解。

     Kate lives in London with her parents. She is a school girl. Today is Kate's birthday and she's fifteen years

old. Her father's name is Smith. He works in a hospital. People think he is a good doctor. Kate's mother is a

nurse. She is a very good nurse.

     Kate has two brothers and a sister, and they study in China. Her elder brother speaks Chinese very well and

has many friends there. He is a college (大学) student. But her younger brother and sister are middle-school

students. Both of them are studying Chinese very hard and want to be teachers of Chinese in their country.

1. Today is Kate's _____ birthday.

A. fifth

B. fifteenth

C. fiftieth

2. What is her father? 

A. A teacher

B. A nurse

C. A doctor

3. What do her younger brother and sister want to be?

A. Teachers of English

B. Teachers of Chinese

C. Teachers of maths

4. Where does her elder brother have many friends?

A. In his country

B. In the hospital

C. In China

5. Both of them want to teach _____ people Chinese.

A. English

B. American

C. Chinese

受安全隔离网闸保护的内部网络需要不断升级。