The Great Wall is north of Beijing.为什么不能用in north

This is the Great Wall. where is the great wall? The Great Wall is the ()of China The Great Wall is the____(long)wall in the world How long is the Great Wall How wide is the Great Wall How old is the Great Wall China is _______ the Great Wall china is f_____for the great wall China is f_____of the Great Wall Where is the Great Wall hotel?改错 how old is the Great Wall? the great wall is wondeful改为感叹句 there is a wall.that is called Great Wall变为一句话 we call the wall The Great Wall 是什么语法? 句型转换（改为同义句）The Great Wall is the longest in the world.No wall in the world is ___ ___ ___ the Great Wall.复制去Google翻译翻译结果 —Is there anyone who is gong the Great Wall?---Is there anyone who is gong the Great Wall?--- _______A.None B.No one C.No D.Not anyKey:B为什么不能选A啊? Where is the Great Wall?It is far from here?No,It's_the north of Beijing.填to Great wall the Great wall 翻译 The great Wall is the longest of the 翻译：the Great Wall