大概是物以希为贵罢。北京的白菜运往浙江，便用红头绳系住菜根，倒挂在水果店头，尊为“胶菜”；福建野生着的芦荟，一到北京就请进温室，且美其名曰“龙舌兰”。我到仙台也颇受了这样的优待，不但学校不收学费，几个职员还为我的食宿操心。我先是住在监狱旁边一个客店里的，初冬已经颇冷，蚊子却还多，后来用被盖了全身，用衣服包了头脸，只留两个鼻孔出气。在这呼吸不息的地方，蚊子竟无从插嘴，居然睡安稳了。饭食也不坏。但一位先生却以为这客店也包办囚人的饭食，我住在那里不相宜，几次三番，几次三番地说。我虽然觉得客店兼办囚人的饭食和我不相干，然而好意难却，也只得别寻相宜的住处了。于是搬到别一家，离监狱也很远，可惜每天总要喝难以下咽的芋梗汤。

Complete the sentences with the given words in their proper forms (用括号中所给单词的适当形式完成下列句子。每空格限填一词)
Climb up to the ____ floor, and you can enjoy a better view. (eleven)
____ , Grace made up her mind to live abroad with her daughter. (final)
It is a very ____ book for language learners to improve writing skills. (use)
Don't worry about your son. He is old enough to be independent and live by ____ . (he)
The movie KungFu Panda II is sure to ____ a large number of teenagers. (attractive)
If you don't go on a diet, it is ____  for you to lose weight. (possible)
The local people had to move away because of the serious ____. (pollute)
The great ____  gave his first show in Shanghai and the tickets sold out in minutes. (art)

解决我国水资源地区分布不均衡的有效办法之一是（    ）