A clean environment can help the city bid for the Olympics,-

A clean environment can help the city bid for the Olympics,- A clean enviroment can help the city bid for the Olympics,wh A clean environment can help the city bid for the the Olympi 英语20.A clean environment can help the city clean environment canhelp the city bid tfor the asian games, Trees can help _____ the air in the city.A to clean B clean help keep the environment clean意思 Friends of the Earth help keep the environment clean.“ keep We can help to Clean up the city streets in our free time (对 What can we do for the environment? The environment can change my feelings.I live in a big city. When did China Win the Bid of 2008 Summer Olympics?