()ofthestudentsmustwearschooluniformswhentheyareatschoolA.AllB.noneC.most
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题目内容：
()of the students must wear school uniforms when they are at school A.All B.none C.most
优质解答
由语法加句子意思应该选A因为students是复数排除B由常识句意思应该是在学校是每个人都要穿校服
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