请根据以下内容回答下列各题 Most meetings have an agenda. For a formalmeeting, this documen

t may be handed out in advance to all participants. For aninformal meeting, the agenda may be simply a list of the points to be dealtwith. The pur- pose of an agenda is to speed up the meeting and keep everyoneto the point. The agenda except a formal meet- ing must be organized in logicalorder. Often the agenda shows not only the topics but the meeting' s functionconcerning each line. All items on which a decision is to be taken shouldappear on the agenda. One-to-one or small informal meetings alsotend to be structured and planned. They are different from chance conversationsin a corridor or over coffee. Small informal meetings may also take place orcontinue during a meal. 1 ) Most meetings have__________46 2) Thedocument may be handed out__________47 to all participants. 3 )Thepurpose of an agenda is to __________48 the meeting and keep every one topoint. 4) Theagenda shows both __________49and __________50 concerning each line. __________