be exited about sth.Be senior to sb.Be devoted to sth中的介宾短语是

be exited about sth.Be senior to sb.Be devoted to sth中的介宾短语是 为什么短语be friendly to sb,be devoted to sth形容词和名词之间要有介词? be sth to sb sth be access to sb suppose sb./sth.(to be) +形容词 / 介词短语的结构与suppose sb./sth.to ha will do sth, be about to do sth, be to do sth, be going to d 英语翻译allow sb.to do sth.ask sb.to do sth.be busy doing sth.be 什么是动词结构?what about doing sth.talk to sb.about sth.be doing s sb be bound to do sth是什么意思 用《sb be made to sth》造句? sb be interesting to do sth be thankful to sb for (doing) sth