be about to do 中about是什么词性?about就介词和副词两词性,肯定不是介词,可为什么是副词呢?

英语翻译Papermoon - Tell me all about it Tell me all about it Does she hold you like I do?Tell me all about it Is her love as true as you?I just had to know I just had to be sure Tell me all about it Do you like the way she walks Tell me all abou be to do be about to do 有什么区别 be to do & be about to do的区别 be about to do 句式中 about这个词在句中做什么成分? be about to do和be about doing 区别 be to do,be going to do,will do,be about to do的区别. be about to do 短语中about做什么成分?be about to do里面about做什么词性?about不是只可以做介词和副词么?但在短语中about做表语,介词可以作表语么? be about to do sth的用法 be about to do用法,例句 be about to do怎么用 用be about to do做句子 be anxious about /to do sth. What do you want to say abou?Please will e doing to do e about to do e to do的区别 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 going to,be to do,be about to do 有什么区别 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.