A
Dear Dr Marie,
I'm 15 and I'm a high school student. I have few friends and I never go out with my classmates. Making friends is so hard and I don't know how some of my classmates do it so quickly. It makes me feel worse about myself. Please help me.
Jenny
Dear Jenny,

Yes, making friends is hard. But you're not the only one. It takes time to make friends. Now let me tell you some ways to make friends.
Help others. Always smile. Show people you care about them when they talk to you. Show that you're interested in what he or she says. When there is a problem in the relationship, work on the problem, not the person.
Dr Marie
() 1. What can we know from the letters?
A. Jenny has lots of friends.
B. Jenny is fourteen years old.
C. Jenny studies in a high school.
D. Jenny likes to go out with her classmates.
() 2. How many ways does Dr Marie tell Jenny to make friends?
A. Three.
B. Four.
C. Five.
D. Six.
() 3. What should you do if there is a problem between you and your friends?
A. Stick to my opinion.
B. Calm down first.
C. Apologize right away.
D. Work on the problem.

1. C 2. B 3. D

1. 细节理解题：根据Jenny的信中"I'm 15 and I'm a high school student"可知Jenny是一名高中生，C选项表述正确；A选项和原文"I have few friends"不符，B选项和原文"I'm 15"不符，D选项和原文"I never go out with my classmates"不符。
2. 细节理解题：数Dr Marie给出的交友方法，分别是：帮助他人、始终保持微笑、他人和你交谈时表现出你在意他们、对对方的发言表现出兴趣，一共4种方法，对应B选项。
3. 细节理解题：根据回信最后一句"When there is a problem in the relationship, work on the problem, not the person"可知，和朋友之间出现矛盾时，要专注解决问题，对应D选项。