The flowers will die soon unless often ________.
—I rang you at about nine, but there was no reply.—Oh, that was probably I was seeing the doctor.
She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
_____ I know the money is safe, I shall not worry about it.
so much electrical equipment , wood and paper in one place , there is a danger of fire .
Washington, a state in the United States, was named ______ one of the greatest American presidents.