This camera is of good quality. If it ______ break down within the first year, we would repair it at our expense.
You ____ television.Why not do something more active?
She is my best teacher ______ help I have made great progress.
E-mail, as well as telephones, ___ an important part in daily communication.
In order to make our city green, _________.
He was about to tell me the secret _______ someone patted him on the shoulder.