问题
                    
Excuse me, could you tell me _________ — Sorry, I’m not sure.
                            A:when the next BRT arrives
B:when will the next BRT arrive
C:when did the next BRT arrive
D:when does the next BRT arrive;
                        
                        B:when will the next BRT arrive
C:when did the next BRT arrive
D:when does the next BRT arrive;
正确答案是:
                        