词语填空。（共10小题，计10分）
用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）
learn, bored, drive, young, until, live, enough, move, with, teenager
“Can I borrow the car, Dad?”
“Not   1   you finish mowing the lawn(除草).”
“But I have to go to work!”
Such conversations often happen to American   2  . A job, a car, spending money, walking the dog and mowing the lawn, this isn’t just the   3   life of middle age but, in fact, this is the life of many American teenagers.
In the US, it is common for kids as   4   as 14 to hold part-time jobs.
They might save up their money to buy a car and, at 16,   5   it. But this kind of independence (独立) isn’t always fun. US kids have to take care of themselves and their younger brothers and sisters so that they are ready   6  alone.
The average (平均的) age of a high school graduate in the US is 17. Traditionally, a US student graduates(毕业) in June and  7   out of his or her parents’ house by September. Of course, one must be ready for this.   8   a small amount of homework, US high school students have more time for working and   9    adult(成人) responsibilities (责任).
Is it better to live this way? It is good to cook for oneself and do the laundry, but US students don’t study    10  . While American kids are working, Chinese and Indian students are studying. But, whatever you do now, you will never feel ready to be an adult.