散客的特点是散,散客之间及其与()之间都不熟悉,所以导游人员在做完自我介绍后,应让客人做()介绍,这样便于他们相互帮助,也便利导游人员的工作。
参考答案:导游人员 自我
---I apologized for_____ to tell you when and where the meeting will be held in advance.
A.my being not able
B.me not to be able
C.my not being able
D.me to be not able