The environment is becoming worse and worse. I think we should do something to ____ people ____ cutting the trees in order to protect the earth.

Food safety is important. Rules _____ to stop people from food pollution.

Jimmy has sixteen broken bikes to________ and gives away to kids who don’t have bikes.

—Do you think a radio is useful in learning English? —Sure. A radio can _____ listening English songs and reports. 

They had a wonderful time. They ate and ate until no food          on the table.