题目内容：

Bob is six years old．He is old enough to go to school． On the first day，his teacher taught him three words，“I，you，he”．Then the teacher said，“I am your teacher．You are my student．He is your student. He is your classmate.”When school was over，Bob went home. His mother asked him，“What has your teacher taught you today?”Bob said with a smile，“Listen，Mum and Dad，I am your teacher．You are my student．He is your classmate．”His mother said，“No，dear．You’re wrong．”Then she said，“I am your mother．You’re my son．He’s your father．”The next day，Bob’s teacher asked Bob to make sentences with“I，you and he”．

Bob stood up and said，“I’m your mother．You’re my son．He is your father．”All the students in Bob’s class laughed．

1.Who taught Bob new words in the school?

A. Bob’s teacher    B. Bob’s friends

C. Bob’s father    D. Bob’s mother

2.How many words did the teacher teach?

A. Two．    B. One．

C. Four．    D. Three．

3.Did Bob understand what his teacher taught him?

A. Yes，he did．    B. No，he didn’t．

C. No，but he understood what his mother said．    D. The writer doesn’t tell．

4.What do you think of the boy?

A. He is not clever．    B. He is helpful．

C. He is polite．    D. He is kind．

5.Who laughed in the class the next day?

A. Bob’s mother．    B. Bob’s classmates．

C. Bob’s teacher．    D. Bob’s father．