After her son died in a car accident, the old lady would sit at the window, ______ out and _______ in thought.

The bus driver always says to us: “Don’t get off ______ the bus stops.”

Can you lend me the book Gone with theWind — Sorry I returned it to the library justnow Maybe it is still ____

You will have to stay at home all day ______you finish all your homework.

Jerry, do youmind my pointing out your mistakes? — ______. You advice is of great value to me.