题目

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Whetherthey're for a teenager or not, all great stories have certain elements: they haveinteresting characters we enjoy reading about; they show these characters in a worldwe can recognize and understand. Themain character faces a problem, usually quite a serious one. The thing that mostdraws us to reading the story is the way the character deals with the problem—whetherthe character gets the better of it, or it gets the better of the character. Charactersin a book forThe result of the experiment was very good, _____ we hadn’t expected 　 A. when 　 B. that C. which 　 D. what