问题
                    
.______alone in a dark room, the littlegirl was so ______ at the _____ sound.
                            A:with what
B:Left frightened frightening
C:Leaving frightened frightening
D:Leaving frightening frightened
                        
                        B:Left frightened frightening
C:Leaving frightened frightening
D:Leaving frightening frightened
正确答案是: