Question

Hearing the ________ sound,Susan was so ________ that she lost her sense．

1. A.
   frightening; frightening
2. B.
   frightened; frightening
3. C.
   frightened; frightened
4. D.
   frightening; frightened

Answer 1

D
第一个空修饰的名词是sound，表示“声音”本身的性质，用-ing形式；第二个空说明的是人的状态，表示Susan听到声音后的反应，用-ed形式。所以本题选D项。