Choose the best way to fill in the gaps.

Canada is huge. It's the ... largest country in the world and stretches from the Atlantic Ocean in the east to the Pacific Ocean in the west and from the ... border in the south all the way north to the ... Ocean. Canada has a population of over 30 million people. It's one of the least densely populated countries in the world. That means it's ... in size but ... a lot of people living in it. 8 out of every 10 Canadians live within 150 miles of the southern border. One reason is that much of Canada's far north is so ... that very ... people can live there. Most Canadians live closer to the border in the south where it is warmer and easier to grow crops.