II.完形填空（10分）
阅读下面短文，从短文后每小题所给的A.B.C.D四个选项中选出最佳选项 (共10小题,每小题1分)
People in Gresham are facing a big challenge. There's a relationship between the development of the Gresham city and the 21 of the forests. The city of Gresham grows day by day, but the forests 22 smaller and smaller. So the city government wants to get some ideas from residents (居民) on 23 to protect the forests and plant more trees.
“We know we have to make way for development, but we also want to create new programs to protect the trees. Trees can save rainwater and make the summer 24 less,” said Tina Osterink, a government official.
Generally, trees 25 a quarter of the city in Gresham, but that number has not always remained the same. The city government has set a (n) 26 of making a third of the city covered by trees. "There are a lot of people that agree with the idea of 27 more trees for the future. And we will 28 new tree rules, including planting trees in more residential areas,” said Brighton West, the program director of the group Friends of Trees.
