He finds watching movies because the people speak too quickly.A. frustratingB. frustratedC

问题补充：

He finds watching movies because the people speak too quickly.

A. frustrating

B. frustrated

C. frustrate

D. frustration

答案：

(答案→)A. frustrating

B. frustrated

C. frustrate

D. frustration

解析：frustrating形容词，令人沮丧的；frustrated形容词，失意的，挫败的；frustrate动词，失败，受挫； frustration挫折。句意：他发现看电影很令人沮丧，因为人们说话太快了。结合语境可知选A。