be about to do用法,例句

be about to do用法,例句 be about to do 的用法求例句 be about to do sth的用法 讲一下be about to 的用法,最后有例句. 将来时态的区别be going to;will do;be doing;be to do;be about to do如题 5种用法 要解析和很典型的例句 used to do used to doing be used to do区别 用法 翻译 例句 do/does和be about to 在一般将来时中的用法? 请问be to do.be about to do.be going to do.will do用法的区别. be eager to do 例句 be about doing 和 be about to do的区别和用法! be careful of/about/with/in的区别be careful 后面可以接of/about/with/in/to do 他们直接有什么区别尤其是前3个,最好详细一点,有例句和用法. be about to的用法 be sure of 或to的用法 例句例句 sb is said to do/ to have done / to be doing 中不定式的用法详解 与 例句 be to do 的用法. 主语+be+adj+to do sth 例句 英语中表示将来时的用法意义有什么不同?be going to do/be about to do/will do/will going to do be about to的用法和意思