Have you ever heard of friendships among animals？ At a zoo in Germany, an unusual friendship developed （1） a cat and a bear．
No one is quite sure how the friendship first began．One day,some（2） （worker）in the zoo noticed a black cat was in the bear's cage（笼子）,and the two animals were playing together peacefully．They were surprised （3） well the small cat seemed to get along with the large bear． The bear keeper allowed the cat to stay with the bear． And later the pair and their unusual friendship（4） （become）a hot topic at the zoo．
After several years, a new cage （5） （build） for the bear． However, the cat was still in the same cage, so it walked around （6） （angry） and cried to be with the bear． The bear keeper finally took pity on the cat（7） let it stay with the bear． The cat and the bear got（8） （close） than before． They often sat together and shared meals in （9） sun．
Sometimes it may be natural for animals （10） （have） their own ideas about who would make a good friend． These may surprise humans, who usually expect animals to form relationships with others of the same species．
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noise； easy； touch； lead to； lie on the grass； stay up； arrive in； go over； be proud of； make great efforts |
（1）Eating too much ice cream may stomach problems．
（2）Avoid your eyes， nose and mouth before washing your hands．
（3）﹣Alice， you weren't in the classroom at four yesterday afternoon．
﹣I English grammar with Linda in the library．
（4）A short drive later， we arrived at a busy， factory． It's full of working machines．
（5）Wang Jicai devoted his life to guarding the island.All the people in my hometown him．
（6）Lisa is leaving for Canada soon by plane． She Toronto on the morning of August 8，won't she？
（7）It's much to understand the words with the help of the dictionary．
（8）Look! The little cat ． How lovely it is!
（9）Over the last ten years， China to green the land．
（10）The boys were so excited about the basketball match that they talking in their bedroom．
Paper﹣cutting is a famous folk art with a long history in China． It was used during （1）f to decorate gates and windows．After hundreds of years' （2）d ， it has become a very popular way of decoration．The main cutting tools are （3）s ﹣ paper and scissors or a knife，but clever and skilled paper﹣cutting artists can make very beautiful artworks．Chinese paper﹣cutting works have these features﹣"Flower in flower，theme in theme．" This means smaller pictures and stories are（4）h in the works．You will be amazed by the wonderful designs when you look at their paper﹣cutting works （5）c ．Through Chinese paper﹣cutting， people express their best wishes．
It is （不礼貌的） to push in before others while waiting for the bus．
It'll take about two days to finish the project if everything goes （顺利地）．
The Chinese government has done a lot to control plastic （污染） in big cities．