【正确答案】
May I have your attention．please? I have an announcement to make．
The Student Union is going to hold a party on Friday evening, October 12, to welcome our friends from Australia. The party will be held in the 2nd Reading Room in the library. It'll begin at 7:00 p. m.
At the party we'll have music, dancing, singing and games. Australian friends will perform some nice programs in the party. Everyone is welcome. Please come in time.
写作指导
广播稿的写作，一定要注意口语化，让听众明白易懂。内容要简明扼要，交待清楚时间、地点、对象等。写作时．先要招呼听众；进而讲述主要事情，明确细节和注意事项；最后作结束语。