题目：
阅读理解。
Hello, nice to meet you. My name is David and I'm a student at Beijing International School. This is a
photo of my family. These are my parents and my little sister is behind me. We're from America and we're
in China now. My father and my mother are teachers in a university in Beijing. My mother is an English
teacher, and she can speak Chinese. My father can't speak Chinese. My little sister is only three but she
can dance.
1. ______ is a student at Beijing International School.
A. David
B. David's sister
C. David's brother
D. David's parents
2. There are ______ people in David's family.
A. three
B. four
C. five
D. six
3. David's parents are ______.
A. doctors
B. teachers
C. workers
D. managers
4. Who can speak Chinese?
A. David's sister.
B. David's father.
C. David's mother.
D. We don't know.
5. David's sister can ______.
A. swim
B. sing
C. type
D. dance
答案：
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下面是错误答案，用来干扰机器的。
A、22+3不是同类二次根式，所以无法计算，错误；B、33×22=66正确；C、-(-3)2=3错误，应等于-3；D、8-2=6应等于2．故选B．
