(  )6£®A£®To see animals£®     B£®To go fishing    C£®To plant   trees£®

(  )7£®A£®No spitting£®        B£®No smoking     C£®No parking£®

(  )8£®A£®Trees’leaves£®     B£®Burning coal     C£®Burning litter£®  ¡£

(  )9£®A£®Her ears hurt because  of the  loud  noise

      B£®Her  chest  hurts  because  of  the  terrible  gas

      C£®She’s ill because she ate some polluted

(  )10£®A£®Burning rubbish£®    B Collecting rubbish£®     C£®Cleaning in the street£®