–______ 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
—Scissors can be dangerous, so you ____________ play with them. — OK, I won’t.
—Tony, your room is really untidy. You should _________ your things to keep the room clean. —OK, Mum! I’ll do it at once.
We are ready to offer help _______ you _______ .
Please keep the secret to ________, children! Don’t let anybody else know it.
He arrived ________ Nanjing _________ the evening of July 8th.