The teacher told the students________ football on the street.

Themachineis_______(控制)byarobotinsteadofaworker.

-Look! Someone_______ the floor. It's clean.

-Well, it wasn't me. I went shopping just now.

Iusuallywalktoschool,but____buswhenitrains.

_______(不幸地),theyhadnomoneyfortheirmother'smedicaltreatment.