Think by yourself..
E.g.
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You can write about 袋鼠s' 生活/習性
oR you can write a story about 袋鼠(think by your imagination←想像力)
Please do your homeworks by yourself. You don't allow me to copy and I don't have much time so I won't help you to do your homeworks seriously.
i recommend you to brainstorm by searching via yahoo or google engines. its easy and thats the wrong attitude coming here and asking someone to do the homework for you.