do you know that the population of Canada is much smaller th

do you know that the population of Canada is much smaller th [ ]do you know is the population of Canada? the population of Canada is much smaller than __ of China为什么 The population of it is much smaller than that of (A ).里填什么 do you know why the world is becoming smaller and smaller?of --Do you know what the population of Shanghai is?--____. 1.The population of the USA is much smaller than____of China The population of Xi`an is smaller than that of Shanghai 一个句型转换的题~The population of Singapore is smaller than that of The population of Canada is _____than____China. Do you know what the population of Dalian is is为什么放在最后. What do you know is the population of Germany?这句话应该怎么翻译?