1. Sweden (瑞典) lies in the north of Europe. It is the fourth largest country in Europe with an a______
    of 450, 000 square kilometers.
2. Children are p______ for doing some housework so that they can learn how to make money for their
    own use.
3. It is very important to get e______ sleep every day to keep healthy.
4. Andy moved to China in 2005. She has found many differences b______ Chinese and Americans.
5. There was a fire in the office yesterday. L______, all the people were saved.
6. To our ______ (惊讶), the factory is still pouring waste water into the river near it.
7. The girl ______ (花费)a lot of time collecting stamps last year.
8. It is a pity that there are a lot of people who do not know the ______ (重要) of time. They spent their
    time smoking, drinking and playing.
9. Chinese parents are strict with their children and usually stop them from ______ (逗留) out too late
    with friends.
10. Do you have bright ideas for inventions that ______ (改变) the world or, at least, make life easier for
     somebody?