_____,they went home,_____.

题目

_____,they went home,_____.
A.Their work had been finished; singing and laughing
B.They had finished their work; sang and laughed
C.Their work finished; singing and laughing
D.After their work finished; singing and laughing
为什么A不对?

答案

亲：关键是逗号问题.A改成After their work had been finished,就OK了.这是从句与主句的关系问题.
C是独立主格结构,是因为句子的主语they,与前面的主语不一致,所以独立.