为什么用They are being honest而不用They are honest求详解

They are being polite.为什么用being? 为什么用They are being honest而不用They are honest求详解 the injured students in the traffic are in three hospital.Now they are being treating carefullynow可以用在现在完成时.为什么不可以用have being treated? 急the injured students in the traffic are in three hospital.Now they are being treating carefullynow可以用在现在完成时.为什么不可以用have being treated? My darling ,you are being follish.为什么用being foolish? H( ) happy they are Pumas never attack a human being except( )cornered?选项：A they are B being C that they areD when they are.为什么不能是A或C? being 为什么用being? where are they为什么要用they being 在这个句子的用法 Andrew is being a nuisance.Andrew is (being) a nuisance.My friends were (being) courageous.They are (being) clowns.这三处being 的用法 我不太明白 感觉是多余的 为什么要用在这里呢? They are busy with being focused on their own life and challenges.请问为什么用being focused?直接用 be busy with focusing on 集中专注不应该是人主动集中专注吗?为什么还用别动的. pumas never attack a human being except ___cornered.1 they are 2 being 3 that they are 4 when they are请问选择哪一个,及分别说出每个为什么对与错 It being sunday,students are at home.为什么用it being?..那它原来是什么样子? It being Sunday ,the students are at home.为什么用being? Such being the case,there are no grounds to justify your complains.其中为什么用being? are being attended to sir?谁能告诉我为什么这里要用being Pumas never attack a human being except_____conered. A.that they are B when they are 为什么选B不选A 为什么用What are these?提问 用They are...为什么?