it is a really red letter day什么是"red letter day"?

it is a really red letter day什么是red letter day? ——which car is better,the red one or the black one?——i prefer the red one,but it is really a——which car is better,the red one or the black one?——i prefer the red one,but it is really a matter a personal ____.A.taste B.style C.affair D This is a red skirt ,l like it.的中文是什么? l wear a red dress.lt's hot.which season is it? what color it that bag?it is --------- a/a red b/red c/the red It is a red.改病句 It is a red car.改为感叹句 l ＿red and it is my favourite colour It is really a wonderful place. Sometimes l really proud ,sometimes it is so small. l really don`t know where __.A it is boughtB he went我选的是a 为什么? it is really a good place还是it is a really good place it is a really good idea .还是 it is really a good idea. is your car black? No,______.A、i'm red B、 it's red C、It's red It is really a beautiful woman 和It is a really beautiful woman哪个对?关键是really的位置~ It is really relaxing. It is really awesome! It is ( )ruler. A.a long red ruler B.a red long ruler C.long ruler D.red ruler