◎ 题干
By the time he realizes he _____ a mistake, it' ll be too late for him to change his mind.    
[     ]
A. makes    
B. made    
C. has made    
D. had made
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“By the time he realizes he _____ a mistake, it' ll be too late for him to change his mind. [ ]A. makesB. made C. has madeD. had made…”主要考查了你对  【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。