During ( )century ,the world population has already reached

During ( )century ,the world population has already reached 在线等during__century,the world population has already reached China has __ population in the world. The population of the world in the 20th century became very The population of the world in 20th century became very much India has the second largest population in the world. India has the secong large population in the world.找错 ________ that China has the largest population in the world. 英语翻译During the 20th century,we have seen the world divided,a It has reached about one fifth of the word's population什么意思啊 It has been 10 years _____ the population reached five The world population is e_____;every country has to control