Shenzhou-VIII has docked with Tiangong-I successfully, the start of the establishment of China’s own space station．
A. marked
B. to mark
C. marking
D. having marked
网友回答
A. marked
B. to mark
(答案→)C. marking
D. having marked
解析：句意：神州八号与天空一号的对接成功，表明中国独立的太空站的成立。这里mark与Shenzhou-VIII是主动关系，它们发生的动作是同时，故排除BCD,故选C。