I have heard about it before这句话对么?before前加完成时还是过去式

翻译：Diogenes ,I have heard a great deal about you . i have never___Sally since she left China A.heard about B.heard of C.heard from D.got from I (have) always heard people talk about.这里有have余没有have有什么区别? 麻烦大家给我选出答案并给出解释.4)Never In my life ( )about such a thing .A:I have heard B:heard have C;have I heard D:do I have heard I have heard so much about you 里面的heard 是啥意思啊?我查字典都没查到啊 A:Have you two met?B:No,but I heard a lot about him I've heard a lot about you.为什么这句话是现在完成时,而No,but I heard a lot about him 却用一般过去时? I have heard him. about you oftenA. mentionB. readC. speakD. to speak I have heard him speak about you often.为什么用speak而不用speaks? He is the person.I have heard about him并句 I have heard about it before这句话对么?before前加完成时还是过去式 I have heard the news.It is about the world famous writer.连成定语从句 I believe all of you must have heard something about this,right?这句话如何翻译 i have heard so much about all you guys怎么解释主要是about后面的成分请高手帮助 -Do you know anything about the small country Palau?-Sorry I have h( )heard about it befre I’ve heard a lot about you I’ve frequently heard about you I was shocked when i heard about the bad I have Heard Your Love Songs I have never heard() interesting news before