精选优质文档-倾情为你奉上Part Reading Comprehension (35 minutes)Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B) ,C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the centre.Questions 21 to 25 are based on the following passage: It is simple enough to say that since books have classesfiction, bio