china is one of the largest country in the world,_____(cover) 9.6 million square kilometers请详喜解释下 为什么不用covers

China is one of The Great Wall is one of the s___ of China. Is China is one of the first countries in the Zongzi is one of the traditional China food.改错zongzi one of China 改 Spring Festival is one of the t___ festivals in China. Yuan longping is one of the most famous .in china. Shanghai is one of the big city in China . This is one of the most famous( )in China.(church) LuXun is one of the best___in china(write)fast Beijing is one of the olaest ______ in China Nanjing is one of the most beautiful city in China 改错:Beijing is one of the biggest city in China hainan is one of the largest i_ in china. Tim is the one of them who____ (be) to China. 改错Chongqing is one of the biggest city in China. China is one of ____ ( big ) countries in the world Maybe one of the biggest problem in China is p______ tianjin tower is one of the ( )( )《tall》ones in china.