—The hall      for international conferences is of great importance.

—I see, and we are sure to complete it on time.

A．built

B．to be built

C．having been built

D．building

车辆管理所使用公安交通管理综合应用平台办理考试预约业务时，应当审核申请人提交的身份证明，确认身份证明有效