be about doing 和 be about to do的区别和用法!

be about to do和be about doing 区别 be curious about doing造句 be wild about doing sth be excited about doing sth be doing表示将来是什么意思 be about be about doing 和 be about to do的区别和用法! be excited in doing sth?be excited about doing sth?区别be excited in doing sth和be excited about doing sth区别不是有be interested in?为什么没有be excited in doing sth be sure of /about doing sth和be sorry for about 有没有这些用法? be worried doing sth 还是be worried about doing sth be doing和be going to do和 be about to do no matter what和whatever尽量详细点 be serious about do还是doing? be serious about doing sth是什么意思? be sure about doing的意思? be angry about doing什么意思,be angry about和 be angry about是相等的吗（在线等）说详细点 be going to和will do和be about to do和be to do和be doing都表示将来,有什么区别.怎么用 be doing和doing的用法区别 to be doing 和 doing的区别 区别be going to,be about to,be doing,be to