问题
                    
—He looked so scary that the kids were really _____. —He often uses that _____ look to frighten them. [ ]
                            A: frightened; frightened 
B: frightened; frightening
C: frightening; frightened
D: frightening; frightening
                        
                        B: frightened; frightening
C: frightening; frightened
D: frightening; frightening
正确答案是:
                        