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1)Which is (large):the United States or Canada?
2)Moscow is the (large)city in Russia.
3)The London underground is the(old)in the world.
4)St.Petersburg is one of the(beautiful)cities in the world.
5)The island of Great Britain is (small)than Greenland.
6)What is the name of the(high)mountain in Asia?
7)The English Channel is(wide)than the Straits of Gibraltar.
8)Russia is a very(large)country.