题目内容
【题目】I the answer to her possible, but I was fully occupied then.
A. could explain; if it had been B. must have explained; were it
C. should have explained; had it been D. should have explained; should it be
【答案】C
【解析】考查虚拟语气。句意:如果可能的话,我本该给她解释这个答案,但当时我很忙。根据题意可知此处表示与过去事实相反,当条件句中省略if时需用倒装结构,把had提前。主句表示“本应该”,用should have done.故选C。
练习册系列答案
相关题目