问题补充:
— You look puzzled at the news.
— Yes. I just can’t imagine he could have done such a thing.
A. what
B. how
C. whether
D. Where
答案:
A. what
(答案→)B. how
C. whether
D. Where
解析:what什么;how 如何,怎样;whether是否; Where在哪儿。句意:听到这个消息,你看起来很困惑啊!——是的,我只是不能想象他怎么会做这样一件事情。结合语境可知选B。