Animals are different from plants ________ they can move when they are attacked by others.
Whether dying patients be helped to end their lives is a tough moral question.
— Why do you do volunteer work in the North-West?— I_______ to improve the lives of the children there through my efforts.
John began to feel little beads of sweat going down the back of his neck. His words seemed to have had no visible _______ on the man.
Living in the mountain area has its problems, ________ obtaining water is a big problem.
Old Richard, ill so long, is losing his memory and needs to be attended to.