--Whendidyourfathercomehomelastnight?  ---Hedidn’tcomeb...

问题详情：

-- When did your father come home last night?

   --- He didn’t come back ________ twelve o’clock.

   A. while            B. when           C. as             D. until

【回答】

D

知识点：介词和介词短语

题型：选择题