M: I have read Mark Twain's book, The Adventures of Tom Sawyer. It's quite interesting and adventurous. ,F: But this book I'm reading is kind of boring. It only tells you some facts about Mark Twain.
(A) M: So, you think Mark Twain's biography is informative? Oh, I have never read Mark Twain's book. (B) M: So, you think Mark Twain's biography is adventurous but it only tells you some facts about his son? (C) M: Excuse me, could you repeat the question? (D) M: Really? You think Mark Twain's biography is boring? Well, the Adventures of Tom Sawyer is also very boring.
C