---Look! A book is on the floor .Whose is it? ---It____be Rick’s.It has his name on it. A. mustn’t B...
2022-11-05 14:43:06 97次 牛津译林版九年级上册英语Unit 7 Films Integrated skills同步练习 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
---Look! A book is on the floor .Whose is it?
---It____be Rick’s.It has his name on it.
A. mustn’t B. can’t C. must D. need
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