为什么I don't know if it will rain tomorrow

为什么I don't know if it will rain tomorrow I don't know _____ it will rain tomorrow.A.if B wether 为什么? I don't know if it will rain tomorrow,If it rains,we won't g 对你可能是小菜一碟,I don't know if it (will rain ) tomorrow.不是说if 引导的 i don't know whether it will rain or not .but if it __.i sha I don't know whether it will rain tomorrow.这个句子中哪个是谓语 I will go with you if it don't rain tomorrow哪个单词错了 i don not know if it( rain )tomorrow.if it (rain 英语急问：1.I don't know if it ___(rain)tomorrow.But if it ___(ra 宾语从句（时态）“ i want to know if it will rain tomorrow,If it rain i don,t think it will rain tomorrow,----- ------? I don't know if he __(come) if it ___(rain) tomorrow.请问第二个空该