I usually sleep with the window open _____ it's very cold.[ ]A. until B. unless C. as D. if -九年

题目简介

I usually sleep with the window open _____ it's very cold.[ ]A. until B. unless C. as D. if -九年

题目详情

I usually sleep with the window open _____ it's very cold.
[     ]
A. until
B. unless
C. as
D. if
题型:单选题难度:偏易来源:河北省中考真题

答案

B

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