on Mid-autumn Day 还是on the Mid-autumn Day?

on Mid-autumn Day 还是on the Mid-autumn Day? mid-autumn day 作文 Mid-Autumn Day Happy Mid-Autumn Day! Happy mid-autumn day ! ____get together on Mid-Autumn Day in China. When is the Mid-Autumn Day?_________________________ The Mid-Autumn Festival,which falls on the 15th day of the 8 同义句转换：The Mid-autumn Festival is on the fifteenth day of the The mid-autumn day on august 15th in chinese lunar calendar. On full moon to celebrate the Mid-Autumn day short plight op In this year,Mid-Autumn day is on September the thirtieth.