题目：
Seeing a stranger with a knife in his hand, the little girl stood under the tree, _______ out of her mind.
A．frightened
B．be frightened
C．to be frightened
D．frightening
答案：
答案：A
题目分析：考查分词用法。本题中的frightened感到害怕的；用形容词短语frightened out of her mind修饰主语the little girl.句意：看到一个陌生人手里拿着刀，那个小女孩站在树下，脑海中非常害怕。故A正确。
点评：过去分词转换的形容词常常用来形容人的情况，也经常用来修饰人所做的主语。
