六、阅读理解。Do you have true friends? Do you want to know better between you and your friends? There are three kinds of friends：“pest friends”，“guest friends”，and “best friends”. The first kind of friend is an acquaintance(熟人)，and all you usually know about them is their names. You may meet this kind of friend at school，or on the bus，but you don't miss them when they're not around. When this kind of friend does something bad，you don't tell them. That is why they are called “pest friends”. The second kind of friend could also be called “social partners”. They are closer than acquaintances，but not as close as true friends. You know their names，a little of what they like or dislike，a little of their family histories；you usually have a few things in common，but you don't talk about anything deep，such as your wishes or fears，and they don't open up to you how they really feel. The last kind of friend，the “best friend”，is the one you know the deepest. You're like family，and know everything about each other. You have no problem staying at each other's houses，and you share your deepest feelings and thoughts. They will correct you when you're wrong. They will always care about you，and never do anything on purpose(故意地) to hurt you. We all have our pest，guest，and best friends. We should value all friendships and remember：all best friends start out as just acquaintances. ( )1. If Jeff is your acquaintance，what kind of friends are you? A. Pest friends. B. Guest friends. C. Best friends. D. True friends. ( )2. From the passage，we can learn that ______. A. pest friends are more important than guest friends B. we always miss our best friends when we're not with them C. a pest friend will never become your best friend D. a best friend never does anything bad to you ( )3. What does the underlined word “they” stand for in Paragraph 3? A. Acquaintances. B. True friends. C. Guest friends. D. Your fears. ( )4. Which of the following shows the structure(结构) of the passage? A. ①/②③④⑤ B. ①/②③④/⑤ C. ①/②/③④/⑤ D. ①/②③/④⑤ ( )5. The writer wrote the text mainly to ______. A. teach us how to find best friends B. warn us not to know more about pest friends C. tell us to value all friendships D. encourage us to make more friends