问题
                    
Where do you live, Jack?—I live on the _____ floor. My room is No._______.
                            A:nine, Ninth,
B:ninth, Ninth
C:nine, Nine
D:Ninth, nine
                        
                        B:ninth, Ninth
C:nine, Nine
D:Ninth, nine
正确答案是:
                        
                        
                        
                    同类题型
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________, the Internet was only used by the government. But now it’s widely used in every field.[ ]
There ______ lots of people here ______vacation.[ ]
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