—How did the fire_____?--By a car accident.
Making good friends is no ________ important to us than choosing a good job; we should take both of them seriously.
The police are trying to find out the ________ of the man killed in the traffic accident.
There are only ten minutes left; can we walk ___________?
The days are gone ________ we could leave our door unlocked at night.
People _______ the dead person was related would make paper-cut offerings on special days.