4．---Tom took away our teacher’s cell phone without being permitted.
问题描述：
4．---Tom took away our teacher’s cell phone without being permitted.
--- Really?I can’t imagine that he _____d__ have done such a thing.
A.must B.may C.can D.should
为什么会是这个,
答
此处应用虚拟语气.选项中只有D是符合的.