nning ofhosting _______ 2010 World Expo is _______ victory not only for Shanghairesidents, but for ___________ people of the whole Chinese nation

dent Xi has advised young people to avoid staying up late, ______ heated response from Internet users on microblog.

does Kangkang go to the park —Four times a month.

______ does he go to work every day—On foot.

China has been considering raising the retirement agesince 2008 to ________ its shrinking workforce and aging society