be about to do 的用法求例句

be about to do 的用法求例句 be about to do sth的用法 be about to do用法,例句 请问be to do.be about to do.be going to do.will do用法的区别. be about to的用法 be about doing 和 be about to do的区别和用法! be to do 的用法. do/does和be about to 在一般将来时中的用法? 求be going to be to do be about to 一般现在时表将来的作文,急 求关于be to do sth的用法和意思 be about to的用法和意思 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 to do & be about to do的区别 will do sth, be about to do sth, be to do sth, be going to do sth 和be doing 的区别will do sth, be about to do sth, be to do sth, be going to do sth 和be doing 的详细用法及它们之间的区别 be to do,be going to do,will do,be about to do的区别. 有没有be around the time 表示此时的用法,还有什么类似于be about to do的词组 be used to do的用法 be to do的意思和用法