为什么是If it doesn't rain tomorrow,we'll go there.而不是If it isn'

为什么是If it doesn't rain tomorrow,we'll go there.而不是If it isn' we will go there if it （ ）.a.isn’t rain.b.doesn’t rain. If it ________ tomorrow,we’ll go roller-skating.A.isn’t rain 24.If it isn't rain tomorrow ,we'll go to climb the hill. If it doesn’t rain tomorrow,we’ll go to have a picnic.同义 If it doesn't rain tomorrow ,I'll go hiking.为什么用doesn't而不用is if it——,we will go to the park tomorrow.A,doesn't rain B,isn 英语如下几道题目1.If it doesn't rain tomorrow,we'll go to the park.= 英语翻译If it doesn't rain tomorrow,we will go for a vacation.If if it doesn‘t rain 【not rain】 tomorrow,we will go for a picn If it doesn't rain tomorrow,we'll have a picnic If it doesn’t rain tomorrow,we'll have a sports meeting.