问题
单项选择题
—I thought you wouldn't mind.
— Well, as a matter of fact, I don't, but you ______ me first.
A. should ask
B. should have asked
C. must ask
D. must have asked
答案
参考答案：B
解析： should后接动词完成式表示“本来应该做某事，结果未做”，此处含有责备之意。故选B。