you can eat food free in my restaurant whenever you like这句话是对的,为什么?

题目

you can eat food free in my restaurant whenever you like这句话是对的,为什么?
like s是及物动词啊，后面还差宾语，但是whenever是副词，不能做成分啊

答案

whenever 是adv 但用作条件连词
you like 用来修饰 restaurant 可以不接宾语