—Hello! This is travel agency office—Hello! I'd like to book two tickets for Qing Western

问题补充：

—Hello! This is travel agency office．

—Hello! Id like to book two tickets for Qing Western Tombs．

—．

A. Of course, please

B. At your service

C. My pleasure

D. A moment, please

答案：

A. Of course, please

B. At your service

C. My pleasure

(答案→)D. A moment, please

解析：A．Of course, please 当然，请便，B．At your service随时为你服务， C．My pleasure不用谢， D．A moment, please请稍等，句意：——你好！这里是旅游办事处办公室。——您好，我想预定两张清西陵的票。——请稍等。所以选D。