Question

Changchang, the oldest known panda in China, ________ for one month.

1. A.
   has died
2. B.
   has been dead
3. C.
   was dead
4. D.
   died

Answer 1

B
本题的干扰项是选项A。die是表示瞬间动作的动词，因此其完成时不可以与表示一段时间的状语连用，因此排除A。而选项B中的has been dead是be dead的完成形式，表示状态，是可以和for one month连用的。