be about to,be to,be going to,be able to的区别

be to和be about to区别 be to be ,be going to be ,be about to be ,will be ,表示将要,有什么区别? nothing to be worry about be about to的用法 to be about+动词不定式 be about to,be to,be going to,be able to的区别 be away ,be up to ,be over,be on,be about to,be in,be out的区别 区别be going to,be about to,be doing,be to be about to do和be about doing 区别 be about to / be going to 的区别 be to do be about to do 有什么区别 be about to 和be to 有什么区别? be about to 与be to 有什么区别? be to do & be about to do的区别 will to be going to be about to do be to 有什么区别? to be To be to be