Students in our school___know shoutingis not allowed in the library.A.can B.may C.must D.need

分类: 作业答案 • 2022-06-08 17:21:18

问题描述：

Students in our school___know shoutingis not allowed in the library.
A.can B.may C.must D.need

答

C
表示‘命令’ 必须（知道）