Parents complain their children are behaving unreasonably _____children consider their parents to be old-fashioned.
Parent should take seriously their children’s requests for sunglasses _______ eye protection is necessary in sunny weather.
--- Do you know the reason _________ pilots turn off the plane’s lights before taking off? ---The practice is for the passengers to adjust to the dark _________ an emergency.
The process of curing a disease is like a war ___ different soldiers fight against an enemy.
In a sports team each player has a clear role,and there are few occasions members are confused or uncertain of their roles.
That so-called football fan doesn’t even know the main difference between the two football teams, _____ surprises all of the people at present.