If I had been a little more careful, I _______the wallet behind.

The dance performed by the disabled actors is really a hit, but years ago no one ____ they were to achieve such great success.

Had it not been for the fact that she ____ in the accident, she ____ in the race．

The old lady insisted that her daughter ____ still alive and that she ____ at once. 

How I wish I ____ the mistake! Everybody present was angry with me.