--what's wrong with your pen?--the ink ____come out.A.won'tB.didn'tC.hasn'tD.can't

问题描述:

--what's wrong with your pen?--the ink ____come out.A.won'tB.didn'tC.hasn'tD.can't
可以分别讲一下有什么区别么?为什么能选A不能选B.D呢?

一般不用过去时, can't执行者一般是人.