完形填空

The weather in our town today is different from that many years ago．It was too hot at the time．Now it becomes 　　1　　 because all the mountains around our town 　　2　　 trees．There is no more sand on the surface of the earth 　　3　　 these new trees．At the beginning of this century, sand was 　　4　　 here．　　5　　 we couldn't 　　6　　 any plants in this poor land．In 1952, a number of young people came to live here．They wanted 　　7　　 this poor land with their hands．They worked hard to plant trees to stop earth 　　8　　 sending away．After many years of hard work, a beautiful new town 　　9　　 on the poor land．Now, people on this town still go on planting more trees all the time．They want to keep it much more beautiful later 　　10　　．

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