Walter offered us a lift when he was leaving,but ___ our wor

Walter offered us a lift when he was leaving,but ___ our work,we turned down the offer.
A not finished B not having finished C not finishing D having not finished
为什么选B,不选C

得方大但 1年前已收到3个回答举报

harry36 春芽

共回答了13个问题采纳率：84.6% 举报

C not having finished= hadn't finished,这里实际上是用过去完成时,因为是插入语（没有主语,不是一句完整的话）,所以要调整分词形式.
过去完成时表示动作发生在过去的过去,就是发生在turned down the offer的过去
整句话意思是：沃尔特在他走之前提供给我们一个升职的机会,但我们还没有完成工作,就拒绝了沃尔特给的升职机会.

1年前

chenjianhua18 幼苗

共回答了13个问题采纳率：69.2% 举报

过去完成时呀，finish是非延续性动词

1年前

vn7a4x 幼苗

共回答了1个问题举报

这是现在分词作（原因）状语情形。用现在分词是因为后面主句的主语(we)和动词finish在逻辑上是主动关系，而过去分词(finished)表示被动关系，故A不选。C是现在分词的一般式，有“正在进行”的意思--“还没有‘正在完成’我们的工作”，含义不合。B是现在分词的完成式(having finished) 的否定式--not having finished(还“没有完成”)，“由于还没有完成工作，...

1年前

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