Which phrase is correct ?
I have some questions as below:
1. I would like to know which phrase as below is correct :
A. All Saints Day
B. All Saints' Day
2. Would you please tell me which phrase as below is most commonly used in English:
D.All Saints' Day (or All Saints Day)
3. Which phrase do you speak more often except " trick or treat " in Holloween or All Saints'Day
E. Happy Halloween.
F. Happy Halloween Day
G. Happy Hallowmas.
H.Happy All Saints' Day
Thank you so much.