______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 m

题目简介

______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 m

题目详情

______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 million years ago.
A.Being inspectedB.Inspected
C.Having inspectedD.To inspect
题型:单选题难度:中档来源:不详

答案

C

试题分析:考查非谓语动词。本题的逻辑主语为the scientists,与inspect之间为主动关系,再根据其动作有先后性,故用having done结构。句意:检查过沙下面的骨头之后,科学家断定它们是来自大约6千5百万年前的恐龙。故C正确。

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