I am Bob. I’m twelve years old. This is a picture of my family. This is my mother. She is smiling. She’s beautiful. This is my father. He’s tall and thin. This is my sister. She’s fifteen years old. She’s tall. This is my brother. He is three. He’s cute.

1.1. How old is Bob?

A Twelve.

B Fifteen.

C Three.

D

解析：选A。A细节理解题。根据“I’m twelve years old.”可知，鲍勃12岁。故选A。

2.2. Bob’s mother is ________ in the picture.

A sleeping

B smiling

C crying

D

解析：选B。B 细节理解题。根据“This is my mother. She is smiling.”可知，这张照片中，鲍勃的妈妈在微笑。故选B。

3.3.Bob’s father is ________.

A short and fat

B tall and fat

C tall and thin

D

解析：选C。C细节理解题。根据“This is my father. He’s tall and thin.”可知，鲍勃的爸爸又高又瘦。故选C。

4.4. ________ is 15 years old.

A Bob

B Bob’s sister

C Bob’s brother

D

解析：选B。B 细节理解题。根据“This is my sister. She’s fifteen years old.”可知，鲍勃的姐姐15岁。故选B。