Which one of the follwing expressions is correct？（）

A、Meetings are work， just as in any other work activity. Therefore， the more preparation you have done， the better the results you can expect.

B、People will be more likely to participate in a meeting， by asking questions or offering feedback， if they know what is going to be covered.

C、In your meeting invitation， list the action items and request that attendees come prepared to address these issues.

D、In order to keep the meeting on task and within the set amount of time， it is important to have an agenda.

正确答案：ABCD