题目内容
-Why is she sleeping now?
-Oh, she didn't go to bed ________ she finished her work yesterday.
[ ]
A.
when
B.
as
C.
until
D.
if
答案:C
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题目内容
-Why is she sleeping now?
-Oh, she didn't go to bed ________ she finished her work yesterday.
when
as
until
if