He will come here if he isn't busy tomorrow. 这里为什么不用 if he won't be busy tomorrow?求解释

he will come here .i will let you know .用if连成一句 I w____ if he will come tomorrow If you build it,he will come he will come here划线提问,划线部分come He will come here if he isn't busy tomorrow. 这里为什么不用 if he won't be busy tomorrow?求解释 He may come here if he ______ (be) free tomorrow. He may come here before five if he()(be)free. He mey come here if he _______( be )free I don't imagine that he will come here if it rains,____.a.will he b.won't he为什么不选b? I am not sure _____ he will come here oI am not sure _____ he will come here or not.答案给的是whether和if都可以,请问为什么if也可以呢? He will come here when he _____(be) free. He tells us that he will come here.[改为一般过去时] 连词成句:1.he,help,will,can,help,if,he,you2.the,come,will,I,this,about,here,when,with,manager,talk,him两分钟内要 I don't imagine that he will come here if it rains,______?A.do you B.don't you C.will he D.won'...I don't imagine that he will come here if it rains,______?A.do you B.don't you C.will he D.won't he请说明理由 选BCD的都有.... if只能跟在动词后面吗?也就是说I am not sure ______ he will come here.不能用if,只能用weather, 填空：He will come here _______（字母开头是L) Can you make sure ____?A.that he will come here today B.when he will come here today C.will he come here today D.whether will he come here todayCD100%错，我想知道AB是怎么回事 I s___ he will come here tomorrow.(按首字母填空)