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JackhadtraveledsixmilesacrossthechannelhisenginefailedandwasforcedtolandA.untilB.afterC.sinceD.when为什么选d不选a

题目详情
Jack had traveled six miles across the channel ___________ his engine failed and was forced to land
A.until B.after C.since D.when
为什么选d
不选a
▼优质解答
答案和解析
根据时态来说,had done先于done发生,所以这句话应是“杰克在飞过海峡六英里时,他的引擎突然出问题而被迫着陆”.在做某事时,突然发生另一事之意用when