The day came finally _____ I was given an opportunity to act in the play.
The bus to the Forbidden City runs on ________ hour by ________ hour.
Dr.Peter Spence, ________ headmaster of the school, told us, “________ fifth of pupils here go on to study at Oxford and Cambridge.”
Many lifestyle patterns do such ________ great harm to health that they actually speed up ________ weakening of the human body.
It's ________ good feeling for people to admire the Shanghai World Expo that gives them ________ pleasure.
Some people fear that ________ air pollution may bring about changes in ________ weather around the world.(2009·江西)