问题
选择题
They didn’t go to bed ________ they finished their homework.
A.when
B.because
C.until
D.if
答案
答案:C
题目分析:句意:他们一直到完成他们的家庭作业才去睡觉。When当……时;because因为;until直到,常与not构成固定句型not···until直到……才; if如果。所以选C。
They didn’t go to bed ________ they finished their homework.
A.when
B.because
C.until
D.if
答案:C
题目分析:句意:他们一直到完成他们的家庭作业才去睡觉。When当……时;because因为;until直到,常与not构成固定句型not···until直到……才; if如果。所以选C。