That is the boy whose mother is looking for him.这句话为什么有him呀?

题目

That is the boy whose mother is looking for him.这句话为什么有him呀?

答案

whose 是 所有格,代指谁的.whose mother 就是作伪主语代指他母亲,如果没有him这一句就光有了主语,谓语,但是少了him这个宾语