I didn't go to bed ______ I finished my math homework yesterday evening.A whenB as soon asC until

问题描述:

I didn't go to bed ______ I finished my math homework yesterday evening.
A when
B as soon as
C until

C
not……until……直到……才……,不到……不

选C ,是not ……until句式

until 直到……
昨晚我做完数学作业才睡觉的

选C