---You’d better _____ quiet here. Look at the sign. ---Sorry, I don’t notice it A. keep B. to keep C...
2023-01-09 09:25:31 150次 2014-2015学年江苏亭湖新区实验学校八年级上期末住校班英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
---You’d better _____ quiet here. Look at the sign.
---Sorry, I don’t notice it
A. keep B. to keep C. keeps D. keeping
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