my sister is only ten.she is a meddle school s(补充s开头的单词）是补 student么、
问题描述：
my sister is only ten.she is a meddle school s(补充s开头的单词）是补 student么、
答
是的
student 学生
is是单数,不加s
祝学习进步O(∩_∩)O
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