题目内容：

    Li Chunlin, a farmer, used to live in a poor village in the north of Shanxi in the 1980s. He and his wife went to Shenzhen to make a living __________ running a restaurant.

Years later, they became rich and returned to their hometown with excitement. However, they __________ that the land around the village was covered with sand. That made them __________.After thinking twice, Li and his wife __________ to fight against the sand.

They bought thousands of young trees and planted them around the village. Only a few survived（存活）, because the trees weren't watered often. How to get water was a big __________.They dug a well（井）but it became dry __________.Then they asked a drilling team to dig a deep well.__________the clear water appeared, their money ran out. They didn't have money to buy young trees. Learning what they were doing, one of their friends who did __________ was moved and wanted to do something for their village, too. So he offered the money they needed.

With the money, they bought trees and then had them planted. They __________ the trees as if they were their own children. After some time, green __________came out. When the villagers saw the changes, some started to join Li and his wife in the fight. Then more joined. Years went by, and now larger areas around the village are covered with green trees.

1.A.by B.at C.on

2.A.discussed B.discovered C.disagreed

3.A.sad B.scared C.excited

4.A.warned B.decided C.advised

5.A.request B.problem C.direction

6.A.quickly B.properly C.peacefully

7.A.But B.And C.Although

8.A.treat B.course C.business

9.A.looked up B.looked for C.looked after

10.A.leaves B.grass C.flowers