Are you know.china has the lagest population in the world?有没有错.并回答它
问题描述：
Are you know.china has the lagest population in the world?
有没有错.
并回答它
答
改成Do you know
答
你好,有错,应该助动词Do提问,而不是Are,因为后面的know已经是句子的谓语了.