Facts prove that the world’s economic development isnot a win-lose game but one in which all ______ be winners

He is confident, ______, in my opinion, is most important in modern society

When will the 2010 World Expo(世博会) come to a close —It’ll close at the end of ________.

He was so kind that he was always ready to _______ money and clothes to those in the flooded areas.

Willie has complained to the sales manager about the PC he bought _____ screen exploded for no reason.