单项选择题
If you are asked to chair a meeting, remember the following six golden rules for meeting（）.
A.treatment B.requirement C.management D.improvement
单项选择题 If you begin on time, group members who（）late will realize the value of time.
单项选择题 There is an extensive（） glacier system, endless forests, and innumerable lakes throughout this highland area.
单项选择题 The employee had to break off（） the conversation in order to wait on his manger.
