When the spaceship traveled above, new-looking earth appeared before us, earth that we had never seen before.
A. a; an
B. the; an
C. /; the
D. a; the
网友回答
(答案→)A. a; an
B. the; an
C. /; the
D. a; the
解析： 考查冠词，根据句意思理解，第一空是表示泛指的，意思是：一个全新的地球，所以用a，第二空用an earth作同位语。