用He says 和用He said 各自转的间接引语时态上有什么不同?

用He says 和用He said 各自转的间接引语时态上有什么不同? I am busyhe said和He says he is busy相同吗?为什么? 用He said造句 he says that he is busy he said that he was busy 这两个一个是现在进行时一个是过去时,怎么用呢? 现在进行时在直接引语变为间接引语用什么形式?He says he am do homewoke.变为He said he ...什么? “他说”是 he said还是he says? he told me that he___ ___my dog when i____in new york cityhe says that he is going to be an engineer 用he said改写句子 到底什么情况下said或SAY在人名、称呼后的,什么情况下said或SAY在人名前的呢?“.”He says.还是 says he.He says,还是 says he..”“.”he says还是 says he.后还有：“.” he says he`s just arrived in Scotlan.这句话有很多问题首先他说过的话,为什么不用过去时he said,我看有些句子就用he said. 间接引语的谓语动词什么时候用一般现在时例如：he says that he is a student.这是课本上的句子我是说例句中为什么用says而不是said?什么情况下这样用? ___to know Professor Zhang .前面填什么?A 、He said B、I said C.He is said D、It says ( )to know Progessor Zhang.A,He said B,I said C,He is said D,It says 请尽快回答：_______to know Professor zhang.A He said B I said C He is said D It says ___to know Professor smith.A.he said B.he is said C.i said D.it says请说出理由 what he says and waht he does do not agree为什么say和does用复数 do用单数 He said that he will go abroad next year.可以说He says that he will go abroad next year吗? he said he was hard-working 为什么用was 转述他人的话时用he says 还是he said如提,这不懂he says the American economy is growing more slowly than expected.在新闻中播道：1）The head of US federal reserve says the American economy is growing more slowly than expected.2）