首先還是請(qǐng)你聽(tīng)一段文章, 內(nèi)容是說(shuō)在美國(guó)大學(xué)和高中里學(xué)生為了周未開(kāi)舞會(huì)成立委員會(huì)的事情, 還提到了彼德和瑪麗學(xué)校里開(kāi)舞會(huì)的種種情況. 現(xiàn)在請(qǐng)你注意聽(tīng).

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　　In American colleges and high schools, students often have dances at their schools on weekends. Students usually plan the dances and do a lot of work for them. They do this in committees. There was a dance last Friday night at Peter and Mary's school. Mary was on the decorating committee and Peter was on the clean up committee. The dance was in the school gymnasium. Every student paid two dollars for the dance. They spent some of the money on decorations and they hired a band to play music. They also bought some food and drinks. The dance began at 7 o' clock. Nearly 500 people came. Most of them were students of Peter and Mary's school. Some students brought friends from other schools.Everyone danced and had a good time.