if it were not for protection we get from insect-eating animal是什么意思

If it had not been for与If it were not for有什么区别? Were it not for ------------for the heavy rain.i should have been here earlier A if it were not B were it notC had it not been D if it wasn't _____ the clouds ,you would find the airplane in the sky easily.A Had it not been for B If it were not C If it had not been for D Were it not for选什么?为什么? If it were not for… If it had not been for … but for… 有什么关系和区别,请高手详细讲解,谢谢 if it were not for protection we get from insect-eating animal是什么意思 ()for the snow yesterday ,we would have gone to climb the mountain.a,if it were not b.had it not been c.if it was not d.were it not 求详解语法句式 ____ the sun,nothing could live on the earth.A.Were it for B.Were it not forC.It were for D.If it is not for请说明原因, If it _ for the rain,we _ the picnic yesterday.A were not; could have hadB were not; could haveC had not been; could have had _____ the expense,I _____ to Italy.A.If it were not,go B.Were it not for,would go C.We ______ his advice,we'd better have been cheated.A.If you don't give us B.Had it not been for C.If it were not for D.Should it not for If it were not for their support,we would be in a diffcult situation那个were为什么不是were,而不是 is 或was或 are if it were not for my father,my life would not have been so enjoyable.后半部分求分析 还有前面为什么用were? If it were not for the fact that he ________ ill ,he would finish it.A.is B.be C.were D.am If it were not that...But that he came to help me ,I could not have succeeded .是不是可以改写成:If it were not that he came to help me ,I could not have succeeded .或者改成If it were not for the fact that he came to help me ,I could not h If it were not for the fact that Anne___ill,I would invite her to the show. 要用is?表事实? In the work efficiency of the dormitory always very low,so if it were not for time only urgent,I if it not be for .是什么用法?