. Probability is the mathematical study of the _____ of an event’s occurrence.

— The Coca-Cola company is one of the 　　　 of the match.— No wonder there are many Coca-Cola pictures around the sports field.

All the students are looking forward to the first _________ to pass the College Entrance Examination.

The British government often says that providing children with      to the information superhighway is of great importance.

Some famous singers live on the _________ from their record sales.