be about to do when的同义短语

英语翻译用be about to do sth when 的句式 be about to do when的同义短语 be about to do sth… when和while的差别……be about to do sth… when和be about to do sth…while差别是什么?请给出明确的解析! 对be about to do sth when 造句 be about to do when是啥意思 be to do & be about to do的区别 be to do,be going to do,will do,be about to do的区别. 帮忙用was/were doing .when ; be about to do.when;had just done.when造句, had juest done..when ,were/was doing..when,be about to do ..when 啥意思啊 be about to do sth的用法 will e doing to do e about to do e to do的区别 英语翻译“我刚要离家时,我的一个朋友来为我送行”（be about to do...when） be to do,be about to do,determine to do sth.的意思是什么be going to do ,,,be made to do ,,,be use to do ,,,be worth to do ,,,be willing to do ,,,hope to do 的意思呢? 请问be to do.be about to do.be going to do.will do用法的区别. 求be going to be to do be about to 一般现在时表将来的作文,急 高一英语 一般将来时be going to/will do/be about to do/be to do的区别 be about to do 和be going to do的区别? be sure to do 与be about to do之间的区别