British scientists said teenagers are programmed to take risks because they enjoy the thrill of dangerous situations________ others.
_______ breaks the law should be punished .
Love is ______ way of life,but not _____ aim of it.
--- Must I stay at home, Mum? --- No, you_____
--- I’m going to Yulong Snow Mountain tomorrow? --- ----------
It’s hot here. Why not ________your coat?