句中为什么this 要换成it?Rumor has this that there will be a strong earthquake.

句中为什么this 要换成it?Rumor has this that there will be a strong earthquake. Rumor has this that there will be a strong earthquake.句中为什么this 要换成it? It's amazing how much this helped.句中为什么要用how much?how much this helped在句中是什么成分? is this coat yours?No,it's not mine.此句中为什么要用yours和mine? It doesn't matter中matter可不可以换成mind为什么? This story sounds interesting,but it is not true.句中interesting为什么现在分词方式? 想问个关于it用法的问题我想不通 In fact it is a hard job for the police to keep order in an important football match.这句前面的it 为什么不能换成this或者that It's a terrible thing,living with the knowledge (that) the doctor are not able to save his life.在此句中,括号里的 that 为什么不能换成 which ,要分析一下用了什么语法! His attitude to us is that of a comrade.that在句中何意?如何解释此话.that换成one,it 行不行?为什么?多谢讲解. I think it is impossible to finish the work in five days.为什么不能把it换成this或that 为什么在it's certain that/to do sth中不能把certain换成sure?要具体解释,有赏! It must be morning now,for birds are singing.句中的for能不能换成because?为什么? because swimming can make me healthy .句中,可以把swimming换成it吗 I found it difficult to work out the problem.中it可以换成it's吗?为什么?急 I have no time(for)it.其中括号中能换成to吗?为什么? it is 40 metres long中is能换成has吗?为什么? It is just so much fun in Disneyland中is能不能换成has,如果不能,为什么 It’s known to all that.把it换成what,that后面为什么要加上is.