Why is he always forcing his daughter to practice playing the piano if she is not __________ a pianist?

The leader is losing ground as the rest of the runners _____ 

The girl’s sudden death _____ the police’s _____ this matter.　　

This area soon ____ from the effects of the earthquake.

After long and hard struggle, his small family business began to _____.  Hopefully, it will change into a large firm in the near future.