When it es to giving his kids the education they deserve, the 51-year-old father knows he never college without financial aid.
A. could have attended
B. could attend
C. had attended
D. should have attended
网友回答
(答案→)A. could have attended
B. could attend
C. had attended
D. should have attended
解析：考查虚拟语气。本题的虚拟语气是通过介词without（要不是，如果没有）表示出来的。根据句意可知是与过去事实相反的虚拟语气，故使用“情态动词+have done”。Could not have done不可能做了某事；should not have done本不应该做某事，实际上却做了。句意：如果没有经济援助，这位51岁的父亲知道他不可能完成大学教育。故A正确。