单词拼写（共10小题；每小题0..5分, 满分5分）
As a saying goes,                (经验) is the father of wisdom and memory the mother.
The murder rate in the city has risen to four times the national               (平均数) .
Now that you are a college student, you should learn to be             （独立的）of your parents' help. 
She is a psychology              (毕业生) of University of Pennsylvania.
To speak English              (流利地), you had better read as many English articles as you can.   
The country is making               (准备) for war
People who are sent to prison for drunk-driving get what they            (应得的) .
She               (解释) to me the other day that judging from my test results she believed that I hadn’t focused my efforts on studying.    
There are three ways to get something done: Do it yourself, hire someone to do it, or            
(禁止) your children to do it.
At present, the new position                 (挑战) him to study still harder during his spare time every day.