I _____ you this for many times,but you don't listen to my advice.A.told B.tell C.have told

问题描述:

I _____ you this for many times,but you don't listen to my advice.A.told B.tell C.have told
请说明具体原因

C.have told
因为for many times是时间短语,已经说明要用现在完成时了