1. You ___________________ (没必要告诉) her the news yesterday, for I had told her earlier.（need）
2. As we all know, it was _____________________(他的粗心) that resulted in the car accident.(careless)
3. The press conference, originally _______________________(将在明天举行), has to be put off for some reason.(hold)
4. ___________________(是我莫大的荣幸) to have been invited to speak at the coming 100th anniversary of our univerity. (honour)
5. If it had not been for your help, _________________(我们不会生活幸福) now.(live)
