Students should be encouraged to use _________ Internet as _________ resource.
| A．不填；a | B．不填; the | C．the; the | D．the; a |
India attained __________ independence in 1947, after __________ long struggle.
| A．/; a | B．the; a |
| C．an; / | D．an; the |
Four and __________ half hours of discussion took us up to midnight, and __________ break for cheese, chocolate and tea with sugar.
| A．a; a | B．the; the |
| C．/; the | D．a; / |
Marco Polo is said to have sailed on __________ Pacific Ocean on his way to Java in __________ thirteenth century.
| A．the; a | B．a; / |
| C．/; the | D．the; the |
It was __________ cold winter night and the moon was shining brightly across __________ night sky.
| A．/; a | B．a; the |
| C．the; a | D．the; / |
Animals are obviously __________ lower form of life than __________ man.
| A．a; / | B．the; the |
| C．a; the | D．/；/ |