—Has Tom finished his task yet?—I’m not sure. But he _____ on it last week
The reason why he was late is ______ he got up too late.
While crossing the street, please ________ for the coming cars.
_______ his foot wounded so seriously, he had to give up this basketball game.
The company was named Gates Hall ______ a man named James Gates.
I have no idea _______ they will pass the final exam.