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thesecondbookwas()byAugust1952,buttwoyearslater.theendwasstillnowhereinsight.A.completedB.tohavebeencompletedC.tocompleteD.tohavecompleted

题目详情
the second book was ( )by August 1952,but two years later.the end was still nowhere in sight.A.completed B.to have been completed C.to complete D.to have completed
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答案和解析
B.to have been completed 计划1952年8月完成第二本书.by 表示到某个时间,一般用完成时,固用have ,完成是被完成,所以用其被动式completed
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