We can never expect ________ bluer sky unless we create ________ less polluted world.(2009·安徽)

A．a；a  B．a；the  C．the；a  D．the；the

(2011·浙江)Experts think that ________ recently discovered painting may be ________ Picasso.

A．the；/  B．a；the  C．a；/  D．the；a

(2011·山东)Take your time—it's just ________ short distance from here to ________ restaurant.

A．/；the  B．a；the  C．the；a  D．/；a

(2012·安徽)Carl is studying ________ food science at college and hopes to open up ________ meat processing factory of his own one day.

A．/；a  B．/；the  C．the；a  D．the；the

(2012·新课标全国)Sarah looked at ________ finished painting with ________ satisfaction.

A．/；a  B．a；the  C．the；/  D．the；a

(2013·重庆，32)The parents were shocked by ________ news that their son needed ________ operation on his knee.

A．a；/     B．the; /     C．the; an      D．a; an

(2013·浙江，15)People develop ________ preference for a particular style of learning at ________ early age and these preferences affect learning.

A．a；an  B．a；/  C．/；the  D．the；an

(2013·江西，19)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

(2013·山东，22)It was________cold winter night and the moon was shining brightly across________night sky.

A．/；a  B．a；the  C．the；a  D．the；/

(2013·江西，32) Animals are obviously ________ lower form of life than ________ man.

A．a；/  B．the；the  C．a；the  D．/；/