1. If they had known it would start a war, they ____________________ (not invade).

2. She ___________ (not write) that letter, if she had not been so angry about the war.

3. If he had not been badly wounded, he_____________________________ (escape).

4. If there had been enough UN peacekeepers, they ________________ (be able to) stop the war.

5. We __________________ (put) flowers on the grave, if we had been able to find it.