When we hurried to the station, there happened ____ no bus at that time. [ ]

e her mother was ill, she had no _____ to go tothe New Year Party．

Hetelephoned the travel agency to_______three air tickets to London.

The mobile phone has changed people’s life a lot ________ it was invented.

________， I lost heart in English learning，but my teacher often said to me，“Keep on studying hard，and you’ll succeed________.”