分类：教育/科学-外语学习
问题：Therewillcomeadaywhenallofuswill? 
There will come a day when all of us will be living in cies quite unlike______ of the present.   A. ones  B. that C. those   D. the ones   Thank you.
回答：答案为C,这里的those代指前面的the cities,是一个习惯的用法.