问题
选择题
He did not regret saying what he did but felt that he _________ it differently.
A．could express
B．would express
C．could have expressed
D．must have expressed
答案
答案：C
考查情态动词。 could have done 本可能做某事，而实际上没有做，句意：他不后悔说了他所做的事，但是他感到他本可以用不同的方式表达的。故选C。