which后面的动词用单数还是复数

题目

which后面的动词用单数还是复数
比如which subject take depends on your interest 中的depend为什么要加s

答案

这句话的完整说法是you take which subject depends on your interest.which subject 指一门课程,后接单三
which 修饰的词表复数时用动词复数形式,which subjects you take depend on your interests.
which 修饰单数用单三,如例句