She asked if any of the passengers knew _____ about machines

She asked me if I knew? She asked me if I knew ( ). 请英语高手指教：She asked me if I knew ( ). 英语翻译the policeman asked John if he knew the victim. 单项选择``( ) 1._____ of them knew about the accident because it what about the price of these washing machines --- How about the price of these washing machines?--- They a The police asked the woman if she _____(see) a stranger in b I knew that the lady _____ Bill when she spoke of a bright y when asked about what she thought of the movies,she just sai she asked me if i played any sports.________________________ The _____ bus was full of passengers.(crowd)