问题补充:
There is a look on her face. She must have seen something horrible.
A. fright
B. frighten
C. frightened
D. frightening
答案:
A. fright
B. frighten
(答案→)C. frightened
D. frightening
解析:词性及词义辨析。Fright n惊吓;恐怖的东西;V使…害怕;frighten V使…害怕;frightened adj感到害怕的;frightening adj 令人害怕的;通常都用过去分词转化的形容词修饰人,用现在分词转换的形容词修饰事物,但是look(表情)是与人有关的,仍然要你管过去分词转换的形容词修饰,故本题C正确。