讲一下be about to 的用法,最后有例句.

讲一下be about to 的用法,最后有例句. be about to的用法 翻译一下be equal to sb.in sth.并简单讲一下equal的用法, be about to do sth的用法 be about to的用法和意思 be busy的用法 能举个例子给讲一下吗? be about to do 的用法求例句 讲解一下英语中不定式的用法尤其是讲明白to be done 与to do 的用法清楚明白详细会追加分数的 be about doing 和 be about to do的区别和用法! be good for 、be good with、 be good to能不能给我讲一下这三个词组的意思和用法 be good for 、be good with、 be good to能不能给我讲一下这三个词组的意思和用法 be crazy about 的用法 be about to do用法,例句 讲一下part的用法 讲一下since的用法 谁能告诉我这两句话的区别：the book was not to be found 和the book was not to book最好讲一下be + to be 的用法不好意思，后一句是the book was not to find 请问be to do.be about to do.be going to do.will do用法的区别. 英语题,顺便讲一下用法You shouldn't go anywhere.The train ____A will start Bis starting Cstarts D is to start请讲一下will do be doing 和 be to do 的用法是will do ,be doing ,be to do