The ----- expression on her face suggested she was---- when she was watching Liu Qian'sA.amazing,amazed B.amazed,amazing C.amazed,amazed D.amazing,amazingperformance.答案是选C,但以前老师说过ing表动作发出者,

The ----- expression on her face suggested she was---- when she was watching Liu Qian'sA.amazing,amazed B.amazed,amazing C.amazed,amazed D.amazing,amazingperformance.答案是选C,但以前老师说过ing表动作发出者,
The ----- expression on her face suggested she was---- when she was watching Liu Qian's
A.amazing,amazed B.amazed,amazing C.amazed,amazed D.amazing,amazing
performance.答案是选C,但以前老师说过ing表动作发出者,是主动的,ed是承担者,被动的.她脸上的惊讶的表情,应该是主动发出的,应该用ing形式吧,所以第一个空应该选amazing吧,像这样的题到底应该怎么选?ing和ed到底应该怎么区分?希望哪位高人为我指点迷津,万分感谢,有悬赏分

The ----- expression on her face suggested she was---- when she was watching Liu Qian'sA.amazing,amazed B.amazed,amazing C.amazed,amazed D.amazing,amazingperformance.答案是选C,但以前老师说过ing表动作发出者,
1.ed 修饰人,如i am tired 还有face look expression smile eye （眼神）只能用ed .ing 修饰物,如a boring movie .但表令人惊奇的人时用ing ,如a surprising man （一个令人惊奇的人）.2 .ed 表动作已完成,boiled water 开水.ing 表动作未完成,boiling water 正沸腾的水 .