Animal's language
We see animals, like rabbits, bees, dogs, birds,{#blank#}1{#/blank#} …, but do you know how these animals {#blank#}2{#/blank#} things? First, let's see a rabbit. When a rabbit sees something{#blank#}3{#/blank#} , it runs away at once. When it runs, its tail {#blank#}4{#/blank#} up and down. When others see this, they run away, too.
Many other animals use this kind of way. When a bee finds some food, it goes back to {#blank#}5{#/blank#} home. It can't tell the {#blank#}6{#/blank#} bees where the food is by speaking to them, but it does a little dance in the air. This may {#blank#}7{#/blank#} other bees where the food is.
Some animals say things by {#blank#}8{#/blank#} sounds like a man does. For example, a dog barks when a {#blank#}9{#/blank#} comes near.
Some birds can make several different sounds, each with its own {#blank#}10{#/blank#} . In a word, every animal has its own language.

（1）Jane is good at{#blank#}1{#/blank#}  stories.

（2）You can't{#blank#}2{#/blank#}  with your classmates before five o' clock.
（3）We often practice{#blank#}3{#/blank#}  in summer.
（4）It takes him thirty minutes {#blank#}4{#/blank#}  the river.
（5）Five {#blank#}5{#/blank#}  students go to school on foot.

    One day, a student asked his teacher, "what is greed?" The teacher didn't answer his question{#blank#}1{#/blank#} , but asked the student to walk through the chocolate factory next to their school and pick out the biggest chocolate bar（条、块） he could find．But there was a {#blank#}2{#/blank#}: as he passed through the factory, he could not turn back.

    The student went to the chocolate factory. As he walked, he saw a large chocolate bar. He liked it, but thought he might be able to find an even bigger one if he kept going. He kept walking and saw {#blank#}3{#/blank#} chocolate bar. This one was a little bigger. But {#blank#}4{#/blank#}, he thought he could find an even bigger one if he kept going. As he neared the end of the factory, he saw fewer chocolate bars, and {#blank#}5{#/blank#} of them were as large as the earlier ones. He started to regret his decision to keep going. Finally, he {#blank#}6{#/blank#}. He went back to his teacher empty-handed and explained what had happened.

    The teacher told him, "You liked the {#blank#}7{#/blank#}chocolate bar, but you kept looking for a bigger one. And later, you realized that you had given up the best chocolate bar because you thought you could do better. That is called greed."

—Because the teachers are friendly.