单选题 You are so clear about it; somebody ______ you.
  • A. would tell
  • B. ought tell
  • C. must have told
  • D. should told
【正确答案】 C
【答案解析】这里注意must have told实际上是一种极其肯定的判断形式，即情态动词must后跟have done这种结构表判断。