On April 24th, 2011, Hu Jintao, ________ chairman of the P.R.C., and other state leaders attended Tsinghua centennial (百年的) celebration at ________ Great Hall of the People in Beijing.A./;/ B./;theC.the; the D.the; /
Jack, try to learn some relaxation exercises and do them ______ you feel stressed.
It is _____ world of wonders, ______ world where anything can happen.
A study shows that students living in non-smoking dormitories are less likely to ________ the habit of smoking.
As we all know, ______ medical examination will help us find out health problems as early as possible.
Ann ______ here any more.She left last month.