At home, he never seems to have time until after 10:30 pm, ________ his children have gone to bed.[

题目简介

At home, he never seems to have time until after 10:30 pm, ________ his children have gone to bed.[

题目详情

At home, he never seems to have time until after 10:30 pm, ________ his children have gone to bed.
[     ]
A.whose time  
B.when
C.on which  
D.by which time
题型:单选题难度:中档来源:同步题

答案

D

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