After Chang’e-3 landed on the moon on Dec 14 China became the third country this after t

问题补充：

After Chang’e-3 landed on the moon on Dec 14, China became the third country this after the US and the former Soviet Union.

A. having achieved

B. achieving

C. achieved

D. to have achieved

答案：

A. having achieved

B. achieving

C. achieved

(答案→)D. to have achieved

解析：句意：在12月14号嫦娥三号在月球登陆后，中国成为了继美国和前苏联之后第三个能在太空上行走的国家。这里需要定语，修饰country，因为country被序数词修饰，所以用不定式做定语，而且这件事是已经发生的，所以用不定式的完成式。选D。