问题
选择题
—Judy, you look so tired.
—Yes, I didn't go to bed ____ 12 o'clock last night. [ ]
A. when
B. unless
C. until
D. after
答案
答案：C
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—Judy, you look so tired.
—Yes, I didn't go to bed ____ 12 o'clock last night. [ ]
A. when
B. unless
C. until
D. after
答案：C