______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 million years ago.

A.Being inspected B.Inspected

C.Having inspected D.To inspect

 

C

【解析】

試題分析:考查非謂語動詞。本題的邏輯主語為the scientists,與inspect之間為主動關(guān)系,再根據(jù)其動作有先后性,故用having done結(jié)構(gòu)。句意:檢查過沙下面的骨頭之后,科學(xué)家斷定它們是來自大約6千5百萬年前的恐龍。故C正確。

考點:考查非謂語動詞

 

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