笔试部分（80分）
一、单项选择。（15分）
( ) 1.-----Let’s go to school.
-----That ________ good.
A. sound B. sounds C. is D. are
( ) 2. _______my father and that is my mother.
A. This is B. This’s C. They’re D .They are
( ) 3. ----_______is she ?
----She is my sister.
A. What B. Where C. How D. Who
