10．The two brothers 　　　(与……相像)each other, so it’s difficult to tell one from the other.

9．The newly built entertainment park　　　 (占用)much space in the suburb．

8．The brave deeds of those three students have received public 　　　(认可) and praise.

7．That job is a good test of your competence because it is very 　　　　　(具有挑战性的)．

6．Blood is the　　　　 (媒介)in which oxygen is carried to all parts of the body．

5．Some damage has been caused to this cultural site unintentionally by people，while some has been caused d　　　 ．

4．Having lived in Hainan for many years，he could not t　　 the cold weather in the north.

3．With the increase of the population，we may suffer from a short age of n　　 resources.

2．Last month Liu Xiang defeated all his c　　　 and finally won the gold medal after one year of training．

1．It’s illegal to read other people’s letters without p　　　　 .