1 . A v________ is a person who does a job without being paid for it. (根据首字母单词拼写)

2 . The travelers made complaints to the ________ (协会) of Chinese Consumers. （根据汉语提示单词拼写）

4 . Marbury is said to be a wonderful ________ (队友) in CBA. (根据汉语提示单词拼写)

5 . The athlete will require ________ (外科手术) on his left foot. （根据汉语提示单词拼写）

6 . One of the biggest ______ (挑战) in learning English is that we should memorize so many new words every day.（根据汉语提示单词拼写）

7 . A c________ is a page or several pages showing the days，weeks and months of a year. （根据首字母单词拼写）

8 . To tell you the t________, I don’t know the old man, either. （根据首字母单词拼写）

9 . It took him a while to adapt himself to his new________ (环境).   (根据汉语提示单词拼写)

10 . The government as well as the i_________ should take measures to protect the environment.   (根据首字母单词拼写)