We can never expect bluer sky unless we create less polluted world.
| A．a; a | B．a; the | C．the; a | D．the; the |
Dr.Peter Spence, ________ headmaster of the school, told us, “________ fifth of pupils here go on to study at Oxford and Cambridge.”
| A．/；A A | B．/；The | C．the；The | D．a；A |
Many lifestyle patterns do such ________ great harm to health that they actually speed up ________ weakening of the human body.
| A．a；/ | B．/；the | C．a；the | D．/；/ |
It's ________ good feeling for people to admire the Shanghai World Expo that gives them ________ pleasure.
| A．/；a | B．a；/ | C．the；a | D．a；the |
Some people fear that ________ air pollution may bring about changes in ________ weather around the world.(2009·江西)
| A．/；the | B．the；/ | C．an；the | D．the；a |
Sam has been appointed ________ manager of the engineering department to take ________ place of George.(2012·重庆)
| A．/；/ | B．the；/ | C．the；the | D．/；the |