_______ no buses , we have to walk home
According to the school rules, if a student _________ happen to damage something by accident,he/she should report it to a teacher or the office immediately.
It was not long _____ he was born that his mother died of illness.
Most of the audience wondered what idea a man who is deaf from birth can have _____ music.
It is ten years _____ I lived in Nanjing, so I know ____ about what it is like today.
Safety in school has been of great concern because of the frequent reports ____ students got injured or killed while in school.