1. This accident had a great ________ (effective) upon the future of both mother and son.

2. It’s said that the two parties will ________ (combination) to defeat the third.

3. Can you tell me who’s ________ (responsibility) for the terrible mess?

4. You were wrong to enter my office without ________ (permit).

5. Their football team ________ (performance) very well in the match yesterday.