问题
选择题
What he said at the meeting made Mary rather embarrassed, so he felt that he ______ differently.
A．might express
B．should express
C．could have expressed
D．must have expressed
答案
答案：C
虚拟语气题。 Could have done 过去本能够做某事实际没做。 在会上他的发言使得玛丽非常尴尬，因此他认为他本可以以不同的方式表达。