11.The region of East asia encompasses modern ______, ______, ________ and ______.
12. Chinese history can be roughly divided into three periods:_____ (ca.2000 BC-500 AD), _____(ca. 500-1500), and ______ (ca.1500-
13.the _____ Dynasty (918-1392) was one of the mosr prolific periods for a wide range of disciplines, especially pottery.