— No, you ______________. I have asked Kate to do it.

— How about Mo Yan's? He is famous now.

— I'm not sure. It ______________ be a pair of sports shoes.

— Great. Daweishan Mountains might be a good choice.

    Eleven countries are building a great wall of trees across Africa. It is called the Great Green Wall, The aim is to bring life to the dry lands and help to fight the bad environment.

    The wall is about 8, 000 kilometers long and 15 kilometers wide. It covers from Senegal in the west to Djibouti in the east, on the south of the Sahara Desert (撒哈拉沙漠). So far, Senegal has made the best progress by planting about 11, 00, 000 trees.

    Many years ago, there were few trees in that area and the winds used to be very strong. It was harmful to the fields. Also, there was little rain, so few plants could grow and many people went hungry. Since the tree planting project started, the trees have provided food for the local people and have increased the wetness (湿度) of the air. Little by little，there appeared green fields for people to grow plants.

    The project which began in 2007 is supposed to cost a total of 8, 000, 000, 000 dollars. Many countries are trying their best to help to continue the planting. So we will be able to see the whole green wall across Africa in the near future.

    You should try to have a good relationship with your neighbors, because you never know 1 you may need their help. If they do something to annoy (让……不高兴)you, it is 2 to discuss it in a polite way than to have an argument(争论)about it.

    For example, if your neighbors are playing loud music that you do not like, ask them politely to 3 the music instead of 4 the police directly for help.

    Trees and fences(围栏)can also be a 5 of disagreement between neighbors. My grandmother likes sitting 6 in the sun after lunch, but her neighbor has put up a high fence that 7 sunshine from going into her yard in the early afternoon. My grandmother does not want to be 8 with him, because he 9 her a lot of support when my grandfather died last year. So she went to talk with the neighbor in a friendly way.

    Then, her neighbor lowered the fence just enough to give her some sunshine 10 losing his privacy (私人空间). My grandmother cut down the tree that was above his garden and dropped leaves all over his lawn(草坪) in the autumn. Finally, they reached an agreement which made both pleased.