Once，there was a young painter who was good at painting birds．His paintings sold{#blank#}1{#/blank#} and he was famous all over his country．

    The emperor(皇帝)loved Collecting paintings,especially roosters(公鸡)．{#blank#}2{#/blank#}he asked the famous painter to paint a roosters for him．He wanted the roosters to be the best of all his collections．

    The painter{#blank#}3{#/blank#}to do so．The emperor waited and waited for one year,but did not get the painting．He became{#blank#}4{#/blank#}and asked the painter to come to see him．

    The painter came．He walked into the palace{#blank#}5{#/blank#}paper,paints and a brush(刷子)．In five minutes，a perfect picture of a rooster{#blank#}6{#/blank#}on the Paper．Seeing this，the emperor was all the more angry．"If you can paint a picture of a rooster in five minutes，{#blank#}7{#/blank#}did you keep me waiting for a year?"he said．

    "I'll let you know why,Your Majesty,"said the painter．"Could you please come with me?"

    He{#blank#}8{#/blank#}the emperor to his own study(书房)．There，paper almost filled the{#blank#}9{#/blank#}．On each paper was a painting of a rooster．

    "Your Majesty,"said the painter．"It took{#blank#}10{#/blank#}one year to improve my skill in order to paint a perfect rooster for you．"

Anna: What is the topic of your project?

Alice: About {#blank#}1{#/blank#} in our city.

Anna: It is a good topic.

Alice: The pollution is rather serious. It's said that some {#blank#}2{#/blank#} pour waste water into the river near our city.

Anna: It may pollute our water.

Alice: You're right. We should do a survey near the river and take action.

Anna: {#blank#}3{#/blank#} great your idea is!

Alice: I'll write my report and do something for it. Would you love to do it with me?

Anna: Sure! Let's work {#blank#}4{#/blank#}.

Alice: The city is our home. It is our duty to make it clean and {#blank#}5{#/blank#}.