这里时态为什么要用过去进行时?As a result some of the shirts that were put in boxes for shipment were were missing one or two buttons,the collar ,even a sleeve sometimes!句中时态如过去进行时何故?

这里时态为什么要用过去进行时?As a result some of the shirts that were put in boxes for shipment were were missing one or two buttons,the collar ,even a sleeve sometimes!句中时态如过去进行时何故? As my father was leaving the house,the policeman arrived.这句句子中从句为什么要用过去进行时态?leave不是瞬间动词吗?瞬间动词好像不能用进行时态的吧? i was being tested for a driving licens for the third time首先分析第一个问题,这边的过去进行时的被动时态,为什么要用过去的 “进行时”?难道我用 I was tested .也可以表示过去的时态啊!第二个问题,什么 it looks as if they (told) the truth,but in fact they are not 括号内为什么不能填told现在时的虚拟不是过去时 或过去进行时么?为什么只能填过去进行时的时态? 英语时态96/63 - -为什么用过去进行时?解释下句子的意思 when的用法 we played outside till sunset,when it began to rain.这里的when it began to rain,可以用进行时态吗?为什么这里用的是过去时呢? when he saw the ruler was not following his advice,he resigned.从句为什么用过去进行时?能用一般过去时态吗,哪种时态合适些? As I was putting the bike together,I discovered a piece was missing.时态的运用.前半句用过去进行时我理解,但是后半句为什么不是 a piece missed呢?后半句应该用一般现在时呀.如：As she was working on the computer,sh 将来进行时中,hold为什么要用过去时?这句话：the olympic games will be HELD in our country in four years' time.held作为hold的过去时为什么会用在这里好像是将来时态的地方. when的用法when and where_____you_____(buy)that nice coat 这里为什么用过去时呀,这儿不是两人正在对话吗,应该用现在进行时呀,为什么不用这个时态呀, what were you doing at four o'clock yesterday afternoon?回答用是过去时态还是过去进行时态?为什么? at the moment多用于什么时态?Tom and Jim_____(do) their homework at the moment.这里应该用现在进行时还是过去进行时? AS i was writing a letter ,Robert is came to visit me.为什么前面用过去进行时,后面用过去时 （一般现在时态,一般过去时态,现在进行时态,过去进行时态,一般将来时态,过去将来时态,现在完成时态,过去完成时态,现在完成进行时态）每个时态造两个句子,一共要造18句, Just then,The telephone rang.这里为什么用过去式啊,为什么不是过去进行时呢? 用过去进行时 写一篇英语作文 一件难忘的事 时态要正确 The expensive shops in a famous arcade near Piccadilly were just openig.这里的just不是和现在完成时连用吗,为什么这里用过去进行时 过去进行时+when+一般过去时 是什么时态