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问题 选择题

Never _____ old _____ learn.         [ ]

A. too; to          

B. to; too      

C. enough; too    

D. too; enough

答案

答案：A

填空题
用所给单词的适当形式填空，其中有两个是多余的。
clothes, use, get, pass, do, play, spend, in, money, hard, owner, expensive
         Life used to be fun for teenagers. They used to have money to 66_______, and free time to spend. They used to wear teenage  67_______ and meet in teenage coffee bars and discos. Some of them still do now. But for many young people, life is 68______ now. Jobs are hard to find. There’s not so much  69______. Things are more expensive, and it’s hard to find a cheap place to live 70______. Teachers say that students work harder than they  71______to. They are more interested in 72______ exams. They know that good exam results may 73______ them better jobs. Most young people worry more about money than their parents 74______ twenty years ago. They try to spend less and save more. They want to be able to get home of their 75______ one day.
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单项选择题

利用冠钉插入残根根管内固位的全冠修复体称

A．嵌体
B．半冠
C．烤瓷熔附金属全冠
D．桩冠
E．3/4冠
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