Ofthe100driverssincethebeigningoftheyear,10%werefoundinknowledgeabouttrafficriles.A.tohavebeentested;lackB.havingbeentested;tolackC.tested;lackingD.tested;lacked

Question

Of the 100 drivers____ since the beigning of the year,
10% were found_____ in knowledge about traffic riles.
A.to have been tested;lack B.having been tested;to lack C.tested;lacking D.tested;lacked

Answer 1

C 1.过去分词作定语,表示被动或完成.
2.find sb doing 结构.
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