虚拟语气if省略与不省略的区别if the policemen had arrived two minutes later than that,the man must have been killed by the gang.a.had the policemen arrivedb.if the policemen arrivedc.if the policemen arrivedd.had the policemen had arrived

虚拟语气if省略与不省略的区别if the policemen had arrived two minutes later than that,the man must have been killed by the gang.a.had the policemen arrivedb.if the policemen arrivedc.if the policemen arrivedd.had the policemen had arrived 省略if的虚拟语气if i were a bird可以省略成were i a bird吗 虚拟语气 省略if的倒装 not应该放在哪啊? 虚拟语气 省略if的倒装 not应该放在哪啊?有没有例句啊? 关于省略的虚拟语气省略if的虚拟语气中,与现在相反把were提前,与过去相反把had提前,那与将来相反呢?是把were提前还是把should提前? 英语句式问题7.虚拟语气中if的省略.Were you in my position, you would do the same.不省略的还原句是什么?省略为什么用倒装?谢谢. 虚拟语气与if条件句的区别 if的虚拟语气 虚拟语气中if 的省略 Ifit rained tomorrow morning ,you would do ,.这句话怎么变成省略if的倒装句?虚拟语气中if 的省略Ifit rained tomorrow morning ,you would do what.这句话怎么变成省略if的倒装句,难道是rained it if在虚拟语气中的省略用法 最好能分点列出~ if引导的条件状语从句与if引导的虚拟语气的区别 如何区别含有if的条件语句与含有if的虚拟语气的句子呢 虚拟语气里if only 和only if 的区别与用法 请问if的虚拟条件句（虚拟语气）与if的条件状语从句如何区别,请详细说说, as if 的虚拟语气? 虚拟语气什么时候省略should 虚拟语气中if省略的情况在虚拟语气中 如果要把if省略 句子的改变有哪几种情况（比如说省略后的句子要倒装该怎样倒装）?最好能有例子分类说明的 ··· 虚拟倒装句,好像没有省略if ,提前should的,if从句不用情态动词啊.