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                The room is in a terrible mess; it _______ cleaned.(本题2.0分)
A、 can‘t have been
B、 couldn‘t e
C、 may have been
D、 woul be
                    
                    
                    
                
                
                
            
        A、 can‘t have been
B、 couldn‘t e
C、 may have been
D、 woul be
参考答案