问题
                    
1—Mum, have you seen mymobile phone?—_______ you bought last week? I’m afraid Ihaven’t seen _______.
                            A: The one; it
B:The one; one
C:One; it
D: One; one
                        
                        B:The one; one
C:One; it
D: One; one
正确答案是:
                        