题目内容
When you are sleeping, you had better __________ all your windows closed.
A. don’t keep B. not keep C. not to keep D. not keeping
试题答案
1、B
相关题目
When you are sleeping, you had better _____ all your windows closed.
[ ]
A. don't keep
B. not keep
C. not to keep
D. don't to keep
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B. not keep
C. not to keep
D. don't to keep