—Which sport is the most popular in China? —I think is. A. runningB. cyclingC. swimming D

问题补充：

—Which sport is the most popular in China?

—I think is.

A. running

B. cycling

C. swimming

D. table tennis

答案：

A. running

B. cycling

C. swimming

(答案→)D. table tennis

解析：running跑步；cycling自行车运动；swimming游泳；table tennis乒乓球。句意：在中国那种运动最受欢迎？——我认为是乒乓球。结合语境可知选D。