英语语法分析whether he will be able to come is not yet know 这句话中的w

英语语法分析whether he will be able to come is not yet know 这句话中的w It does not matter whether he will come?这句话中的whether可以用if代替吗 It hasn't been decided yet whether/if he will come soon这句话的时 whether he will be able to pass the exam____unknow为什么填IS i don't konw (w ) i will be able to come or not It is not certain whether he will come. he,whether,not ,is,will,come,uncertain,or He is not sure whether he will be to write a Book I don't know whether he is w___ to come 英语语法问题whether he is rich or not doesn't matter请问这句话的whether是 whether he will come or not when he will come is not konwn yet,but when he comes,he will