完成句子
阅读下列各小题, 根据每句后的汉语提示, 用句末括号内的英语单词完成句子.

1. Happiness is an active state of mind ________________one thinks one's life meaningful, satisfactory
    and comfortable. (in)
幸福是一种积极的心理状态, 在这种状态下人们认为自己的生命是有意义、令人满足和舒适的.
2. The population of the village near the sea, ____________________,  are making their efforts to
    develop economy of their own. (depend)
这个靠近海边的村子里近百分之七十的人依靠渔业, 他们正在努力发展自己的经济.
3. This house, ____________________150,000 dollars, is now worth 300,000 dollars. (for)
他花了150,000美元买的房子现在值300,000美元.
4. Her sons, ____________________,  call her up every week. (work)
她的两个儿子都在非洲工作, 每周都给她打电话.
5. I called him by the wrong name, ____________________ I should apologize. (mistake)
我叫错了他的名字, 应该对此错误道歉.
6. I was greatly impressed by the skill __________________mails. (sort)
对于他用来分类邮件的技术我印象十分深刻.
7. The professor can hardly find necessary ground ____________________ his argument in favour of the new theory. (base)
这位教授几乎不可能找到必需的理由, 以此来支持新学说.
8. We can ____________________ safe driving. (attach)
安全驾驶, 我们无论怎么重视也不为过.
9. He was told that it was at least three months ____________________. (perform)
他被告知至少三个月以后他才能做这项实验.
10. The doctor was ____________________ a cure for liver cancer. (search)
这位医生致力于寻找治疗肝癌的方法.