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 mon 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.until
网友回答
(答案→)until
解析：
工作，一辆车，花钱，遛狗割草，这不只是成年人的生活，但事实上，这是许多美国青少年的生活。传统上，美国学生毕业在6月但到了9月他们就要搬出他或她的父母的家。当然，我们必须为此做好准备。美国高中学生有更多的时间用于工作和承担成人的职责上。
【小题1】此题考查固定短语not until表示直到…才。此句的含义是直到你锄完草才能借用车，故用until。
【小题2】此题考查名词，根据语境可知此句的含义是这种对话经常发生在美国人的青少年中，故填teenagers。
【小题3】此题考查形容词，根据语境可知这些日常活动并非无聊的，令人讨厌的，故选boring。
【小题4】此题考查形容词，在as…as中间要用形容词或副词的原级。
【小题5】此题考查动词，在美国16岁的青少年就可以驾驶车辆，故填drive。
【小题6】此题考查固定句型结构be ready to do sth表示准备做某事。故填to live。
【小题7】此题考查固定短语move out of表示搬出，因主语是单数，故用moves。
【小题8】此题考查介词表示伴随，故用with。
【小题9】此题考查动词，因跟在介词for的后面故用其动名词的形式，故用learning。
【小题10】此题考查副词，根据语境可知美国的小学生学习的时间不是很充分，故用enough。