填空题将being改为been。

单项选择题A．British Chancellor of the ExchequerB．British Prime MinisterC．GMTV and The ObserverD．US President

填空题happy fast exciting

填空题将their改为its。

单项选择题Special words used in technical discussion ______.[A] never last long [C] should be confined to scientific fields[B] are considered artificial language speech [D] may become part of common speech