英文是：A .Dragon boat festival B.Christmas c.Halloween d.Easter,哪一个是美国人不庆祝的节日

英文是：A .Dragon boat festival B.Christmas c.Halloween d.Easter,哪一个是美国人不庆祝的节日 是in dragon boat festival还是on dragon boat festival还是at dragon boat festival 是on the dragon boat festival还是at the dragon boat festival?到底是哪个？！！！ 是on the dragon boat festival还是at the dragon boat festival? What do you eat at Dragon Boat F( ) Dragon Boat Festival Happy Dragon Boat Festival! the Dragon Boat Festival dragon boat races 是什么意思 watch the dragon boat Dragon.boat.festival Happy Dragon Boat Festival watch dragon boat Dragon Boat Festivl是什么意思 DRAGON BOAT怎么样 Dragon Boat Fatival The Dragon Boat Festival is a( )hoilday.(western/Chinese) Did you eat a lot last dragon boat festival?