she‘s a good student and is always the best in the class in her studies中的studies 为甚么要复数啊?是三单的缘故吗?可是学习是动词吗?那“always“为什么加sshe often helps me with my studies.中的学习也是三单吗?（ps：再问一个问题哦,sports、favourite subjects又什么时候是用复数啊?
问题描述：
she‘s a good student and is always the best in the class in her studies中的studies 为甚么要复数啊?是三单的缘故吗?可是学习是动词吗?那“always“为什么加s
she often helps me with my studies.中的学习也是三单吗?
（ps：再问一个问题哦,sports、favourite subjects又什么时候是用复数啊?
答
两个 studies 都不是动词,而是名词
always是一个单词“一直,总是”
sport 运动,sports运动会
subject 科目是单数名词,只有超过一个就+s