When the man came in, gun in hand, we all stood there, .
A. frightened
B. frightening
C. being frightened
D. having frightened
网友回答
(答案→)A. frightened
B. frightening
C. being frightened
D. having frightened
解析：
这题考查形容词做状语的用法，句意是：当那个人进来时，手里拿个枪，我们都站在那，吓傻了。因为是修饰人的，用frightened。选A。