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The park keeper found some litter in (a/an,the) park. First he found (a/an,the) crisp packet. (A/an,the) packet was in (a/an,the) middle of (a/ an,the) football pitch. Then he found ( a / an, the ) old comic. ( A / an, the ) comic was under ( a / an, the ) tree near ( a / an, the ) lake. Then he found some orange peel behind ( a / an, the ) fence next to ( a / an, the ) bus stop.