Although metals ________widely in qualities such as strength and hardness,they all have certain qualities in________.
A quarrel _________, which made him ______ his family.
Tom is always ready to help me ______I come to ask him for help.
The detective, _______to read a newspaper, glanced at the man _____ next to a woman.
The house is so large that we can _______it _______flats.
The children were not ______for the accident.