Mother didn't go to bed ________ she finished cleaning the room.[ ]A. after B. until C. because

题目简介

Mother didn't go to bed ________ she finished cleaning the room.[ ]A. after B. until C. because

题目详情

Mother didn't go to bed ________ she finished cleaning the room.
[     ]
A. after
B. until  
C. because
D. while .
题型:单选题难度:中档来源:同步题

答案

B

更多内容推荐