--- Are you satisfied with what he did?--- No. It couldn’t have been ______.
The English play __________ my students acted at the New Year’s party was a great success.
I will never forget the day _______ I came to my university and the day ______ I spent in a new city.
Tony showed me his new cell phone, _______ was small but it could change colors in different weather.
We have heard of many cases _______ some citizens ,especially some famous people, have suffered because personal information had been leaked.
Is this the website_______ you want to have ____ into your files to help you learn English?