it is 的虚拟语气是it was还是it were

it is 的虚拟语气是it was还是it were 虚拟语气中it后面be动词是用was还是were? as if it 后应是were还是was?as if虚拟语气的用法 英语虚拟语气it is time. 虚拟语气句型“it was (high)time that”请问,虚拟语气的句型“it was (high)time that”和“it is (high)time that”在句子表达的意思上有什么区别?请分别举例句说明,谢谢. it's strange that后面加should吗?是虚拟语气还是竟然的意思? it's high time__about the traffic problem答案是something was done.说是虚拟语气.怎么理解?虚拟语气的哪个语法呢? It is quite natural that he (should) think so.quite是副词吗?natural是形容词还是名词,在这里quite后是接名词吗?怎样看出这句话是虚拟语气,为什么不用 It was 不是有should吗? I don't know when you could see it是虚拟语气吗这句话包含的语法是虚拟语气,还是宾语从句 it's time that 从句用虚拟语气did .那从句中是用was 还是were? it is a shame that用法it is a shame that虚拟语气的用法 The milk smells _____sour.A.as if it is B.like it is C.as if it was D.like it was 如果答案选C的话 是不是 要改为 as if it were 的虚拟语气? it would be nice. would是虚拟语气还是作为情态动词的用法?it would be nice. 是结合上下文的虚拟语气,还是情态动词?和it will be nice. 有什么区别? The milk smells ___ sour.A.as if it is B.as if it was不是虚拟语气用过去式吗,尤其是as if后都要接过去式表虚拟语气的啊 It is time 后面有虚拟语气和没有虚拟语气有什么不同?两者的语法是怎么样啊?语法书上说：It is time we started是虚拟语气的句子,可是不是还有一个句型好象是：It is time for sb to ---这句不是虚拟 It is time 后面有虚拟语气和没有虚拟语气有什么不同?两者的语法是怎么样啊?语法书上说：It is time we start是虚拟语气的句子，可是不是还有一个句型好象是：It is time for sb to ---这句不是虚拟 虚拟语气句型“it is (high)time that”中的is变成was请问：1.虚拟语气的句型“it is (high)time that”和“it was (high)time that”在句子表达的意思上有什么不同?请区别性举例,2.这个“it was (high)time that” It seemed that the world was at an end .这句话是虚拟语气吗?如果是虚拟语气，怎么was不用were？