题干
When the man came in, gun in hand, we all stood there, ________.
A：frightened
B：frightening
C：being frightened
D：having frightened
答案(点此获取答案解析）
A
When the man came in, gun in hand, we all stood there, ________.
A：frightened
B：frightening
C：being frightened
D：having frightened
