Four years ago， my mother gave birth to a brother for me when I was 10. I have learned a lot from getting along with him.

After he was born， I almost became a babysitter. I had to amuse him after school. I would make faces and sing to him when he was crying. Sometimes I even carried him everywhere in our yard to cheer him up while my parents were busy. What I liked to do best was to feed him when looking after him. How cute he was as he tasted his favorite food! My parents often praised me happily. As an elder brother， you've made contributions to looking after your younger brother.

I have got happiness from looking after my brother. When I was young， I was the only child in my family. I could get what I wanted from my parents. I was a "Little Emperor" in my family.

But now， as long as I get something good， I want to give it to my brother first. I remembered the year when he was three， he was fond of Rubik cubes（魔方）. I bought one for him with my lucky money as a birthday present. When he got it， he was so happy that he laughed， hugged me and kissed me.

Thanks for spending these years together with my family. It has taught me how to be responsible and unselfish. Not only should I look after myself， but also I should pay attention to my family.

（1）When did the writer's mother gave birth to a brother for him？　　

A. 3 years ago.

B. 4 years ago.

C. 8 years ago.

D. 10 years ago.

（2）What does the underlined word "amuse" in the second paragraph mean？　　

A. 令……开心

B. 令……生气

C. 令……讨厌

D. 开……玩笑

（3）Which of the following is NOT TRUE when looking after his younger brother？　　

A. He fed him.

B. He told stories to him.

C. He made faces and sang to him.

D. He carried him everywhere in the yard.

（4）What might you learn the passage？　　

A. Be responsible.

B. Be unselfish.

C. Be responsible and confident.

D. Be responsible and unselfish.