By the middle of the 21st century ,the vast majority of the world_英语解答

By the middle of the 21st century ,the vast majority of the world's population___in cities.
为什么用will be living而不用will have lived

人气：429 ℃　时间：2020-04-20 04:49:38

解答

LS说的太摸棱两可
will be living这个意思应该是那些人将会住在城市里(一直住在)
而如果是will have lived则是那些人到那个时候将会完成住在城市里这个动作(也就是说后来不住在城市里了)