The computer made in the USA is cheaper than______ madein Germany.

Teachers recommend parents_____their children under 12 to ride bicycles to school for safety.

Seeing an old man get on the crowded bus, Li Hong stood up at onceand ______ her seat to him.

I think you should stop ______ him in English.—I see. He can’t understand English at all. Let me try in French.

Hurry up! The bus is coming.—Wait a minute. Don’t cross the street ____________the traffic lights are green.