6 This forest covers an area of 500 s----- kilometers.
问题描述：
6 This forest covers an area of 500 s----- kilometers.
7 Giant pandas must live in a b----- foeest.
8 China one of the oldest c----- in the world.
9 the l----- of the Yangtze River is about 6300 kilometers.
10 Mount Tai a----- lots of visitors every day.
答
6 This forest covers an area of 500 squarekilometers.7 Giant pandas must live in a bamboofoeest.8 China one of the oldest countriesin the world.9 the length of the Yangtze River is about 6300 kilomete...