Canada's population is only about 29 million.为什么用is

Which country is ____(大)in population,the U.S.or Canada. Canada's population is only about 29 million.为什么用is Canada's population（ )only about 29000000.A.Are.B is.C.Have.D has Basic to any understanding of canada in the 20years after the Second Word War is the country's impressive population growth这句话为什么是倒装句? He's from Canada. which country has a_____(large)population,the USA or Canada? What's it like Canada It's snowing in Canada He's from Canada.(对Canada提问） population population population The population of China is more than that of Canada.请问怎么改错. the population of Canada is much smaller than __ of China为什么不填it the population of Canada -- about 27 millin .填is 还是 has the population of Canada -- about 27 millin .填is 还是 has Canada That's about one fifth of ( )population