I usually sleep with the window open __________ it’s very cold.[     ]A. untilB.

I usually sleep with the window open __________ it’s very cold.[     ]A. untilB.

题型:浙江省月考题难度:来源:
I usually sleep with the window open __________ it’s very cold.[     ]
A. until
B. unless
C. when
D. if
答案
B
举一反三
She worked so quietly __________ no one knew she was there.[     ]
A. which
B. after
C. as
D. that
题型:同步题难度:| 查看答案
用方框中所给单词的适当形式填空。
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