last weekend was our art festival,miss li sang a lot of songs .the twins did some drawing 对不起，-----------旁边有图片第一个是“一个人在唱歌”第二个是“两个人在跳舞”那就改成dancing跳舞？？last weekend was our art festival,miss li ------- a lot of songs .the twins did some --------last weekend was our art festival,miss li sang a lot of songs .the twins did some dancing确定吗？对的话加分！the twins did some “有did”“没有错啊！就是这句啊！did some dancing 就是跳舞的意思啊