Don’t phone me between 7:00 and 8:00 in the evening. We _____ dinner then.

A．are having

B．had

C．would have

D．will be having

“诸非州县之所，不得置市，其市当以午时击鼓二百下而众大会，日入前七刻击钲三百下散。”该现象应始于下列哪一部作品所反映的历史时期[ ]

A．张衡《二京赋》

B．（唐）杜佑《通典》

C．（宋）孟元老《东京梦华录》

D．（宋）王溥《唐会要》