We often sing and dance _____ Children Day.横线内填什么
问题描述：
We often sing and dance _____ Children Day.横线内填什么
答
ON.在儿童节那天,我们通常又唱歌又跳舞
We often sing and dance _____ Children Day.横线内填什么
ON.在儿童节那天,我们通常又唱歌又跳舞