◎ 题干
Do you know what__________ before you __________?
A.was happened; came B.is happening; come
C.had happened; cameD.happened; had come
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“Do you know what__________ before you __________?A.was happened; came B.is happening; comeC.had happened; cameD.happened; had come…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。