◎ 题干
The work ________ ahead of the schedule,they went to the seaside to have some fun.
[     ]
A.had been finished  
B.has finished
C.having been finished  
D.being finished
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The work ________ ahead of the schedule,they went to the seaside to have some fun.[ ]A.had been finishedB.has finishedC.having been finishedD.being finished…”主要考查了你对  【现在分词的被动式】【现在分词的完成式】  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。