问题
选择题
______ a little more time to think, he might have acted more sensibly.
A．If he took
B．If he has taken
C．had he taken
D．Should he take
答案
答案：C
考查在条件句中与过去事实相反的虚拟语气。其结构为：if+主语+had done,主语+would/could/might+have done ,省略if要倒装，had往前提，故选C。