英语 完成时It has been raining for three hours.为什么要加been?加been不是表被动么?

英语 完成时It has been raining for three hours.为什么要加been?加been不是表被动么? 完成时的否定It has often been said这句话的否定是什么 完成时It has been raining.raining既不是形容词,也不是被动语态 初三英语一般完成时选择6.-Where have you _____,Kate?-I've ______ to the bank.A.gone,goneB.been,beenC.gone,beenD.been,gone7.Her grandfather ______ for two years.A.diedB.has diedC.has been deadD.has been died8.It's six weeks ______ I met you 英语完成时什么时候用had been,什么时候用has beenRT 最好详细一点 一个英语的完成时问题there has a tree 和 there has been a tree 两者有什么区别?还有顺便跟我说说完成时什么时候要用has been done什么时候直接has done it is/has been+时间段+since since后面接完成时还是一般过去?求例子详解!拜谢~ 一道关于完成时的英语选择题She couldn't go camping because she caught a cold.It was really a shame.She ____to it.A.had been looking forward B.has been looking forward C.had looked forward D.has looked forward 选哪个?为什么?不确定 过去完成进行时It (had been rainning) for 2 days and the field were all under water为什么不用has been rainning He has often been there.不用完成时怎么说 （初三英语用have/has been to或have/has gone to完成下列句子.The children( )the shop many times.The初三的英语习题）用have/has been to或have/has gone to完成下列句子.The children ( )the shop many times.They can find it easily It is over a year since I last wrote to him.为什么前面不用完成时?It has been over a year . 英语中has been silent里为什么会有been?现在完成进行时和将来完成进行时的公式里都有been,可是它的后面接的都是现在分词啊,谁能解释一下 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