The little boy won’t go to sleep ______ his mother tells him a story.A. or

题干

The little boy won’t go to sleep ______ his mother tells him a story.
A. or B. unless
C. but D. whether

上一题下一题 0.65难度单选题更新时间:2016-07-12 07:18:11

小学学科试题库

初中学科试题库

高中学科试题库