【frustrating】请问frustrated与frustrating有什么不同?

【frustrating】请问frustrated与frustrating有什么不同?

【答案】 frustrated a.灰心的,沮丧的 (修饰人)
　　e.g.I felt frustrated at that time.那时我觉得很沮丧.
　　frustrating a.令人灰心的,令人沮丧的.(修饰物,事件)
　　e.g.Watching movies to learn English is frustrating because the people speak too quickly.
　　通过看电影来学英语是让人灰心的,因为剧中人物说话太快了.
　　类似的还有:interesting令人感兴趣的 disappointing令人失望的；interested 感兴趣的 disappointed 失望的
　　自测：
　　All of us were _____at the ____news.
　　A.frustrated,frustrated
　　B.frustrated,frustrating
　　C.frustrating,frustrated
　　D.frustrating,frustrating
　　.
　　.
　　.
　　.
　　.
　　.
　　.
　　答：B

这个答案应该是对的