补全对话A:Hello!--------------------------?B:This is John speaki

补全对话A:Hello!__________________________?B:This is John speaking.__________________________?A:This is Tom.Now I am in China.I am going to visit the 13 Imperial Tombs tomorrow.B:That sounds exciting.Where are the tombs?A:________________.B:_____________________A:Because I want to explore the tombs of ancient Chinese emperors.B:____________A:Thank you!