According to Speaking for communication, what's the problem that diners complained in the conversation 2?
A、Theyhavebeenkeptwaitingforabout20minutesforatable.
B、Theirtrainhasbeendelayed.
C、Theairconditioningisoutofwork.
D、Theheatingsystemisbrokenintherestaurant.
发布时间：2024-09-25 16:59:36
