She'll never forget her stay there ________ she found her son who had gone missing two years be

题目简介

She'll never forget her stay there ________ she found her son who had gone missing two years be

题目详情

She'll never forget her stay there ________ she found her son who had gone missing two years before.
[     ]
A.that  
B.which
C.where  
D.when
题型:单选题难度:中档来源:同步题

答案

D

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