问题
                    
I have got used to living in this city. But I still miss my old friends in Taiyuan________.– Old friends are best, Right
                            A:in time
B:at the same time
C:from time to time
D:on time;
                        
                        B:at the same time
C:from time to time
D:on time;
正确答案是:
                        