阅读理解

       My name is Peter. I am 12. I have one brother and one sister. My brother is 15 and my sister is 9.

I have a friend. He is an English boy. His name is Tanaka. He is in my class. I have a dog, too. Its name

is Billy. Billy is 2. I like sports. I play basketball, soccer and volleyball after class(放学后). I have one

pencil case, two English books and three Chinese books.

阅读短文，根据短文内容选择正确答案。

1. Peter has __________.

A. one brother and one sister

B. two brothers and two sisters

C. a Chinese friend    

D. a dog and a cat

2. Billy is __________.

A. Peter's friend      

B. Peter's dog

C. Tanaka's dog      

D. Tanaka's friend

3. —Does peter play sports after class? 

   —__________.

A. Yes, he doesn't.    

B. Yes, he do.

C. Yes, he does.      

D. No, he doesn't.

4. Peter likes ___________.

A. computer

B. balls

C. pens

D. photos

5. Peter and Tanaka are _________.

A. brothers

B. sisters

C. friends

D. Chinese

0.60g某饱和一元醇 A，与足量的金属钠反应，生成氢气112mL（标准状况）。求该一元醇的分子式。