—Look! A book is on the floor. Whose is it? —It ______be Rick's. It has his name on it. A. mustn't ...
2023-02-22 11:01:47 173次 2012年初中毕业升学考试（山东济南卷）英语（解析版） 单项填空 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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