Be careful! The monkeys bite.

Watch out for that ball!

Put that game away. You're in class!

Don't use your cell phone. They'll think you are a robber.

Be careful on the running machine! It's too fast.

Look out! The rhino's escaped.

Throw away that can of soda. You can't drink in the weight room.

Let the old lady in line. She only needs stamps.

You must turn off your cell phone during the movie.

Leave your MP3 player in your locker or your teacher will take it away.