With successful launching of Tiangong-1 China’s space dream has taken step closer to re

问题补充：

With successful launching of Tiangong-1, China’s space dream has taken step closer to reality.

A. the; a

B. /; a

C. a; the

D. the; /

答案：

(答案→)A. the; a

B. /; a

C. a; the

D. the; /

解析：考查冠词。第一空用the特指天宫一号的成功发射，第二空用不定冠词a泛指中国的太空梦朝现实更近一步了。句意：随着天宫一号的成功发射，中国的太空梦朝这现实更近一步了。故A正确。