I’m David. I’m a student. My dad is a teacher. He teaches math at school. My mom works in an office. She types (打字) on her computer every day. My grandpa and grandma are farmers. They grow many fruits. When I grow up, I want to be a policeman.

1.1. David’s dad is a/an ________ teacher.

A English

B Chinese

C PE

D math

解析：选D。D细节理解题。根据“He teaches math at school.”可知，他的爸爸教数学。故选D。

2.2.Where does David’s mom work?

A In a zoo.

B In an office.

C In a school.

D In a cinema.

解析：选B。B细节理解题。根据“My mom works in an office.”可知，他妈妈在办公室里工作。故选B。

3.3.David’s grandparents are ________.

A farmers

B teachers

C workers

D drivers

解析：选A。A细节理解题。根据“My grandpa and grandma are farmers.”可知，他的爷爷奶奶是农民。故选A。

4.4.There are ________ people in David’s family.

A 3

B 4

C 5

D 6

解析：选C。C细节理解题。根据文章内容可知，大卫家里有他自己，爸爸妈妈和爷爷奶奶，一共五个人。故选C。