A、He had become mature. B、He suffered poor health. C、He had lots of stories to tell. D、He regretted leaving Vietnam. A题目问说话者从越南战

When I started high school, it was a shock. I had spent eight years fighting my way to be the most popular kid in the Catholic school student body. I had been a big, tough 8th grader, and suddenly I was a lowly 9th grader, bullied by the big, tough 12th grade seniors who ran the high school. I realized then that it’s nice to strive for something, but that you also have to enjoy the moment you’re in and be happy where you are.
    Rock and roll had always been an important part of my life. I remember my friends and I used to drive around until the late hours of the nights listening to the music of rock and roll legends. During those teenage years, I built friendships that I thought would last a lifetime. Most people that age think the same thing, but people drift apart. Jobs, families and tragedies separate people from those lasting friendships. The tragedy that separated me from my friends forever was the Vietnam War. A year after I graduated from high school, I left for Vietnam. I came back burned out and tired, as though I had lived ten lifetimes in the short span of 14 months, the 14 months I was in the war, I couldn’t relate to the friends I had had in high school. They still seem childish, concerned with childish things that weren’t important to me. I was still trying to cope with the death, destruction and evil I had seen in Vietnam. I felt like we had done terrible things to innocent people there, and in turn, I had seen terrible things done to my friends. I withdrew from my friends and started college. Then I quit college and took many different jobs. I spent a lot of my time and money on alcohol and other drugs. Finally, in an effort to get my life going in the right direction again, I sold everything and took what little money I had and bought myself an airplane ticket to Israel. I went there to study history. While studying at Haifa University, I met my wife, who was also an American student. I now teach in a high school back in America. I look at my students and see them struggling with many of the very things I struggled with many years ago. As a teacher, I try to help them over the rough spots as best as I can.
    22.How did the speaker feel when he started high school?
    23.What did the speaker once think of teenage friendships?
    24.What do we learn about the speaker when he returned from the Vietnam War?
    25.What does the speaker try to do as a teacher?