I don't know if he __(come) if it ___(rain) tomorrow.请问第二个空该怎么解释?

I don't know if he ____(be) free tomorrow. I don't know if he ____ ( come ) I don't know if he will come tomorrow i think he if he free i don't know _ _ _(多少次) HE HAS TRIED. I don't know if my boyfriend_ the truth,If he _ the truth,I'll be happyA tells ,tells B will tell ,tells I don't know if his idea will _ _ (有效). I don't know if he_.if he _home,please let me know.(return). I don't know if he ___.if he ____,please tell me .(come) I don't know when he _(come)back.when he _(come)back,I will call you 宾语从句I don't know _ to visit the old man.A whether B if I don't know if he will come tomorrow.为什么要用if 不能用whether i really don't know if he _____tomorrow.if he_____,please give me a ring(come) I don't know if Mr.Green_______(come) tomorrow,but I will let you know if he _____(come) tomorrow I don't know if he ___(come) tomorrow.If he ____(come),I'll tell him about it I don't know if he __ to the movie this evening.If he wants,so ___ I. 高一英语句型转换1、I don't know if he'll come on time.What we want to know _ _he 'll come on time.2、When he was asked why he was late,he didn't say a word.When _why he was late ,he_ _.3、I have found it hard to learn Spanish.I have found 英语翻译i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know I don't know what he needs