．The development of industry has been________gradual process throughout________human existence，from stone tools to modern technology. (2012·浙江，2)
| A．/；the | B．the；a |
| C．a；/ | D．a；a |
Carl is studying________food science at college and hopes to open up________meat processing factory of his own one day. (2012·安徽，21)
| A．/；a | B．/；the |
| C．the；a | D．the；the |
Sarah looked at ________ finished painting with ________ satisfaction.(2012·新课标全国，22)
| A．/；a | B．a；the |
| C．the；/ | D．the；a |
It was________cold winter night and the moon was shining brightly across________night sky. (2013·山东，22)
| A．/；a | B．a；the |
| C．the；a | D．the；/ |
India attained________independence in 1947，after________long struggle.
(2013·新课标全国Ⅰ，31)
| A．/；a | B．the；a |
| C．an；/ | D．an；the |