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

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 be ready有过去完成进行时吗?有的话是had been being ready吗? the doctor asked what he had been eating为什么引语要用过去完成进行时 英语 even if it had been raining ,we should have had a party yesterday请问 这里的 had been raining ,是过去完成时的被动语态,还是过去完成进行时? The telephone had been ringring for there minutes before it was answered.这个句子是过去完成进行时,求各位老师同学详细讲下,这句话是怎么体现过去完成进行时的 The planes had been planting seed for nearly a month when it began to rain.had been planting 为甚么用过去完成进行时,如果用过去完成时可以吗 现在完成进行时She has been helping me in the past days.用过去式过去完成进行时She had been helping me in the past days. They said they had been having a friendly match with our school team.为什么用过去完成进行时? my teacher had been telling me something about it.这一句话是在过去时的语境中发生，从时态上讲应该是过去完成进行时，只是意思不太明白 并且过去完成进行时表示的是一段时间内发生的动作，后跟 It was 1990,and i ****in Denver for a yearA.have been living B.was livingC.had been living正解为B.为什么不选C?1990年时,我已经在Denver住了1年了,过去的过去啊,为什么不用过去完成进行时? It had been wrapped up in newspaper and it contained half the money he had lost.为什么不用完成时为什么不用had contained?照道理也是发生在过去的过去啊? I happened to be caught in a shower.It __ just a couple of minutes before I__ wet through A.had been;had been B.was;was C.was;had been D.had been;was 为什么 后面要用过去是而不是过去完成完时 it had been belonged to me since I was born.had been belonged是什么时态?belong不是系动词吧,那就不是过去完成咯 When I was at the grocery store,I realized that the prices of many items had been risen.这是改错题,答案是将had been risen改为had been rising.我怎么觉得应该改为had risen呢?因为这里是when,为什么要用过去完成进行时, 完成进行时（have+been+现在分词） 完成时被动语态（have+been+过去分词） 现在完成时（have+过去分词）怎么区分呢? 请解释过去完成进行时和过去完成时在这个句子中的区别They ____________ (work) on the program for almost one week before I joined them,and now we ____________ (still work) on it as no good results have come out so far.had been wo it had been a long time ,since sb was a girl.这个过去完成式,had been 过去进行时态和过去完成进行时的区别After walking for ten minutes, she suddenly realized that she_____in the wrong direction. A.was walking B.has been walking C.had been walking D.walked这个题答案选A,但为什么C不行?