你校学生会将为来访的美国朋友举办一个晚会，要在学校广播中宣布此事，并欢迎大家参加。为使美国朋友听懂，请你使用英语写一篇广播通知。要点如下：
| 宗旨 | 欢迎来访的美国朋友 |
| 组织者 | 学生会 |
| 时间 | 8月15日（星期六）晚7：30 |
| 地点 | 主楼屋顶花园 |
| 活动内容 | 音乐、跳舞、唱歌、游戏、交换小礼品（请包装好，签名并在包装外面写上祝愿的话语） |
注意：
广播稿约100词；
应包括以上要点，但不要逐字翻译，要组织一篇通顺连贯的短文；
开头语已为你写好。
参考词汇：to exchange gifts交换礼品；the Student Union 学生会
May I have your attention, please? I have an announcement to make.
May I have your attention, please? I have an announcement to make. The Student Union is going to hold a party on Saturday evening, August 15th, to welcome our friends from the United States. The party will be held in the roof garden of the main building.
It will begin at 19:30. There will be music, dancing, singing, games and exchange of gifts. Everybody please brings along a small gift. Remember to wrap it up, sign your name and write a few words of good wishes.
Don’t forget: 19:30, Saturday evening, roof garden, main building. There’s sure to be a lot of fun. Everybody is welcome.
Li Hua
Aug. 10
略