题目

图中A，B，C，D四个聚落中，最有可能发展成为城市的是（ ） A . A B . B C . C D . D 答案：C-- Haven’t I told you to prepare your lessons well before the exam? You failed again.-- But I ______ for the exam longer than I usually do.  [     ]A. was preparing B. will prepare     C. have prepared   D. prepared