题目内容：

Today was my high school reunion. I was the most remarkable student for all the wrong reasons. I was born with some birth defects and learning disabilities. I overcame them, but it was hard. While working blue-collar jobs, I lived in my car for a few years.

On a cold winter night several years ago, I met Dr. X in the emergency room. He was a former classmate of mine, and we pretended not to know one another. He discovered I was living in my car and heard some of my stories. Then he arranged for me to be admitted to the hospital for a day so I could get warmed up and recover. When I left the hospital, I found a $100 bill in the gas tank door of my van (拖车). I’m sure it was from him.

I now have a home of my own and I'm doing OK, considering everything. When I sent my reservation and check to the reunion committee, it was returned uncashed with a $50 bill along with a note saying “Please don't come.”

I guess my classmates are more closed-minded than I thought they would be. I was hoping age would change them but my wish turned out to be nothing but a joke. In addition to the reservation return, I have also seen a few forwarded emails mocking my attempts to find out about the event. I hope none of those people were blessed with a child with learning or physical issues.

I guess people never change on some things. Thankfully, I have found nicer, caring people along my journey in life, and for that I'd like to thank all of the kind people in the world.

1.What made the author the most remarkable student?

A. Living in his own car.

B. His physical problems.

C. Providing wrong reasons.

D. His efforts to help others.

2.What can we infer from the 2nd paragraph?

A. Dr. X sent a van to the author as a gift.

B. The author was cured by Dr. X that night.

C. The author and Dr. X didn’t recognize each other at first.

D. The author and Dr. X felt embarrassed at first that night.

3.What might be the key barrier to the author’s reservation?

A. His experience in the hospital.

B. The closed mind of his classmates.

C. His uncashed check.

D. The location of the reunion.

4.What does the underlined word “mocking” (paragraph 3) refer to?

A. laughing at  B. insisting on

C. caring for  D. giving away