1 . The meeting is at ________ (convenient) time for me; I’m afraid I can’t come. (所给词的适当形式填空)

2 . ________(relief), I sat back in an easy chair and fell asleep. (所给词的适当形式填空)

3 . Our school ________ for sixty years.

A．has been open	B．has been opened
C．has opened	D．has open

4 . It is also a virtue to forgive and forget, especially in such a competitive and _______________(stress) society. (所给词的适当形式填空)