阅读理解。 I came to study in the United States a year ago. Yet I did not know the real American society until I was injured in an accident because after the accident I had to see a doctor and go to court. After the accident, my roommate called a doctor for me. I was very grateful and determined to repay him one day. But the next day, he asked me to pay him $200 for what he had done. I was astonished. He had good reason to charge me, he said. And if I wanted to collect money from the person who was responsible for my injury, I'd have to have a good lawyer. And only a good doctor can help me get a good lawyer. Now that he had helped me find a good doctor, it was only fair that I should pay him. But every time I went to see the doctor, I had to wait about 50 minutes. He would see two or three patients at the same time, and often stop treating one so as to treat another. Yet he charged me $ 155 each time. The final examination report consisted of ten lines, and it cost me $215. My lawyer was all smiles the first time we met. But after that he avoided seeing me at all. He knew very well the other part was responsible for the accident, yet he hardly did anything. He simply waited to collect his money. He was so irresponsible that I decided to dismiss him. And he made me pay him $ 770. Now I had to act as my own lawyer. Due to my inexperience, I told the insurance company the date I was leaving America. Knowing that, they played for time…And I left without getting a cent. My experience taught me two things about America: Firstly, in America money is everything. It is more important than friendship, honor or professional morality. Secondly, foreigners are still being unfairly treated. So when we talk about America, we should see both its good and bad sides. 1.The author's roommate offered to help him because _____ A.He felt sorry for the first time. B.He thought it was a chance to make some money. C.He knew the doctor was a very good one. D.He wanted the author to have a good lawyer. 2. A good doctor is essential for the author to_____. A. be properly treated B. talk with the person responsible for the accident C. recover before he leaves America D. eventually get the responsible party to pay for his injury 3. The underlined word 'charge' in the second passage means'____'. A. be responsible B. accuse C. ask as a price D. claim 4. What conclusion can you draw from the story? A. Going to court is something very common in America. B. One must be very careful while driving a car. C. There are more bad sides in America than good sides. D. Money is more important than other things in America