问题
                    
Who’s that over there, Is it Jane—No, It ________ be Jane. She is ill inhospital today.
                            A: three fifth
B:third fifths
C:threefifths
D: third fifth
                        
                        B:third fifths
C:threefifths
D: third fifth
正确答案是:
                         
                        
                        
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