—How was your trip to Yancheng last week?

—Wonderful! I only felt sorry that I ________ the nature reserve of red­crowned cranes, but the weather was awful.

A．could visit

B．could have visited

C．might visit

D．might have visited

上门揽收服务中，下列错误的是（）

A.初次上门时，应主动自我介绍，展示工号牌，双手递送名片

B.进入居室时，宜穿着自备的清洁鞋套

C.服务结束时，应将工作现场清理干净

D.工作繁忙情况下，可多次提示客户快速办理