It _____ them $300 a year to run a car.

the crowded bus ______, who was dressed in ablack suit, waving to a woman.

My father ___________live in the country. But now he _______living in the city.[ ]

The books will be _____ free to local schools. 　　[ ]

He is really nervous. He ______ back and forth all the night waiting for the results.