问题
单项选择题
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
参考答案：C
解析：
he could have expressed it differently意为“他本可以用另一种方式来说的”。could have done表示“本能够做到什么”，隐含当时没能达到这个能力。故选C。