It has been said that everyone lives by selling something.这句话的时态是什么?

it has been said与 it is said使用上有没有什么差别 It has often been said that life is difficult as it isas it is 如何理解 与it has been said 类似的句子还可以怎么说?We are slaves to nothing but the clock,”it has been said.与这个用法相似的 It has been said that everyone lives by seeling something.这句话中为什么不用一般现在时.it has been said 这部分. It has been said that everyone lives by seeling something.这句话中为什么不用一般现在时it has been said 这部分 it is said that he has been to shanghai,____ 反义疑问句怎么问 完成时的否定It has often been said这句话的否定是什么 It has been said that everyone lives by selling something.这句话的时态是什么? In a word与as it has been said above有什么区别 高中英语选择it is said that __ Smith has been appointed manager填什么冠词 为什么 一道选择题：________ been abroad before________ been abroad before. A it is said that he has B they said that he has C he is said that he hasD he is said to have怎么做? have been 用法如一个句子:He asked me whether the work has been finished.and I said it has been.后面那一句子.我说已经完成了.是不是就用has been就行了? it has been since.用法 It has been in my it is/has been= It's has been accepted it has long been assumed Its said that this kind of books ___.A .has been sold out B.is sold well