—Do you like this song，Martin? —Yes．It _________ beautiful．

Don’t        the bus until it stops. It’s dangerous.

Mr Zhou is very _______ with his students. He asks them not to be late. If they are late, they have to stay outside the classroom until the next class.

It’s the _______ that caused the big forest fire. A young man dropped it carelessly at picnic.

We’re doing        job        we all feel proud of ourselves.