Last Sunday, I went sightseeing with my friends in the Fairy Lake Park. The park was full of freshness and beauty of spring, with the sun shining and birds singing. When I was enjoying the fantastic scenery around, something unpleasant caught my eye. A young couple in a boat were eating, talking and laughing loudly as if they were the only people in the world. What’s worse, they spat and even threw rubbish into the lake, totally ignoring the noticeable sign "No Littering" nearby. What a shame!

Such behavior left me deep in thought. If all visitors tothe Fairy Lake Park do as the couple did, the lake will beseverely polluted and soon turned into a huge dustbin. Ithink all of us should mind our behavior in public places.Only in this way can we live in more comfortable andbeautiful surroundings.