Read the passage and answer the following questions.

The Lan of Oz

Kim is from Korea. She and her parents are leaving for Australia on vacation. Their flight from Seoul to Sydney is boarding now.

Australia is enormous.It’s a country and a continent. Australians speak English, nut they have their own slang. Australians are called Aussies , their country is Oz, and they have forty different kinds of roos (kangaroos). The word kangaroo is native Australian.

There are also lots of things to do in Australia. In Sydney, there is the famous Opera House, and there are beautiful beaches. In ther northeast, there is the Great Barrier Reef. Visitors can snorkel. There is also Ayers Rock in the center of the country. It’s a very big rock, 345 meters tall and 3 kilometers long.

Kim is very excited about her trip to all these wonderful places.

How many kinds of kangaroos are there?