Ann, _____ the lights when you leave the classroom.

Today’s young people can’t live without smart phones. They keep their hands on the phones wherever they go, even while they ________ meals.

Listen! Someone is playing ______ piano.—Wow! ______beautiful music! I like it very much

Look at the sign. It _________ “No smoking”. —-Oh, sorry, I did not see it.

Anything ______ could be found has been used to repair the damaged bridge.