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

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

  答: be about to 是可能会去做某事,be to是计划好了一定会去做什么什么,和be going to类似,而be able to则是有能力做什么,但做不做是另外一回事,只是强调能力而已……望采纳,