Life is like a long race we compete with others to go beyond ourselves.

e of the purposes of United Nationsis to achieve international co-operation without distinction as to race,____,language or religion

(2011·湖南)One－third of the country ________ covered with trees and the majority of the citizens ________ black people

I don’t have a ping-pong ball, ______ my sister ______.

My English is so poor, please help________ toimprove it..