Dear Diary,
This morning, Hobo told me there was an interesting article about in the newspaper. I wanted to have a , so he passed me the newspaper. The article said, "Some people are . It makes them feel good to things with others." Hobo with it. I told him I was just such a master. How lucky he was! Hobo said it was true. Wait a minute! was he so kind to me today? Oh, he up my breakfast when I was reading! He said he just wanted to make me feel . But why did I feel so angry?

( ) 1. Why does the author give the example in the first paragraph?
A. To show readers that personality is stable.
B. To tell the differences between people who have different personalities.
C. To help describe what personality is.
D. To express that personality will not change.
( ) 2. What does the underlined word "selfish" mean?
A. Helpless.
B. Thinking of others first.
C. Willing to help others.
D. Thinking of oneself first.
( ) 3. Which of the following statements is NOT true according to this article?
A. People's feelings and thoughts are decided by their way of behaviour.
B. Once personality is formed in one's life, it does not change easily.
C. Great changes in one's living environment will bring about changes in one's personality.
D. With whom people like to be shows people's feelings and thoughts.
( ) 4. This article is probably from ______.
A. a novel
B. an advertisement
C. an introduction
D. a piece of news
( ) 5. Which of the following can be the best title for this passage?
A. What is the Big Five?
B. What is personality?
C. How is personality formed?
D. How does personality change?