East China前要加定冠词the吗?

East China前要加定冠词the吗? The East China Sea is ( ) (around,east) of Chongming Island. 专有名词前要加定冠词the Shanghai is ____________.A.on east China B.to the east China C.in East China D.on the East China in east China 和 in East China 和 in eastern China 和 in the East 哪个对啊急 in eastern China=in the east of China? Shanghai lies in the east of China.近义句Shanghai ___ ___ in the east of China. Jiangsuis ( )the east of China ,but Japan is( )the east of China 中国前加定冠词吗?如（入境时间）是Time of entry the China还是Time of entry China? 关于定冠词的问题去西湖是 go to West Lake.而去东海却是 go to the East Sea.不是江河湖海都不加the吗?那是为什么? 北京在中国东部：beijing is in the east of china.可以这样说吗?beijing is east of china.in the 能省略么,为什么？为什么 to the east 和 on the east的 to the 能省略，如：1、canada is on the north of china。还可以说ca Japan is to the east of China 就the east提问怎么问 Shanghai is( )of China是填to the east还是in the east The typhoon is coming from the East China Sea.（划线提问）划在 the East China Sea East China,in eastern China,in the east of China究竟有何区别?east,eastern做定语时有什么不同? in eastern China,in the east of China有何区别? (in,on,to)the north-east of China 的区别 (in,on,to)the north-east of China Shanghai lies in the east of China.改为疑问句