In the London Olympic Games Badminton Men 's singles final Lin Dan won the gold medal be

问题补充：

In the London Olympic Games Badminton Men s singles final, Lin Dan won the gold medal, becoming the first the championship.

A. defended

B. defending

C. to defend

D. has defended

答案：

A. defended

B. defending

(答案→)C. to defend

D. has defended

解析：考查非谓语动词。序数词后面应用不定式作后置定语。如：the first to leave; the last to arrive.