问题
选择题
--- What ____ have happened to Kevin?
--- He might have run into some trouble.
A．could
B．must
C．would
D．might
答案
答案：A
题目分析：考查情态动词。A could可能；B must一定；C would愿意；D might也许。句意：——凯文出了什么事？——他也许碰到了一些麻烦。根据句意说明A正确。