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阅读下面的短文，判断正（T）误（F）。

Wonders of the world(世界奇迹)

Great Barrier Reef

A coral reef(珊瑚礁) grows under the sea.   Coral looks like plants but it is made up of(由……组成) animals. The biggest coral reef in the world is the Great Barrier Reef in Australia.   Coral is a living thing. The Great Barrier Reef is growing now.

Greenland(格林兰岛)

An island is a piece of land(一片陆地) which has water all around it. Some islands are in the sea. Some islands are in lakes or rivers. Islands can be big or small. Greenland is the largest island in the world.   Greenland is very cold.   It snows every month of the year.

1．Coral looks like plants and it is made up of plants. (       )
2．The Great Barrier Reef isn’t growing now. (       )
3．An island is a piece of land which has water around it. (       )
4．All islands are big and in the sea. (       )
5．Greenland is the largest island in the world and it is very cold. (       )