it doesn't matter__you don't know him well为什么用if而不是that

it doesn't matter__you don't know him well为什么用if而不是that it doesn't matter that /if you don't know him well .请问it 是形式 I don't know him well enough. That you don't know how to do it doesn't bother me,but you t 1.I don’t know if ___tomorrow.A.it doesn’t rain B.the rain w lily doesn't know how to do it well用虚拟语气改写 if I her .I do it 为什么是If it doesn't rain tomorrow,we'll go there.而不是If it isn' 为什么很多外国人唱的歌名叫she don't know,而不是she doesn't know,这样语法不就错了吗? 为什么I don't know if it will rain tomorrow 翻译下 I realized that it doesn't matter if you don't understan I realize that it doesn't matter if you don't underested eve 翻译 later on ,I realized that it doesn't matter if you don't