I bought a sweater for only 50 yuan yesterday; it was a real        .

Thanks is a common _____ used in English. You can never use it too much.

The system has been designed to give students quick and easy ______ to the digital resources of the library. 

—I’m sorry I stepped outside for a smoke. I was very tired. —There is no______ for this while you are on duty. 

The term paper was due to December 1, but hard as he tried, he was unable to meet the _____ for it.