–______ keep water running when you are brushing your teeth or washing your hands, Jack.– OK. I know we must save every drop(滴) of water.A. Why not B. Please C. Don’t
The story _____ three years ago.
Trees are very important to our environment. They can _____ wind from blowing the earth away.
—Mike, where’s today’s newspaper?—Well, you don’t need to read it because there is _____in it.
I got up late this morning, _____, I missed the chance of the interview.
As we know, _____of us likes pollution.