_____,they went home,_____.A.Their work had been finished; singing and laughingB.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?
问题描述：
_____,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
they went home yesterday ，【didn't they 】?
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是否可以解决您的问题？
答
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.