"Two actions" because it is plural.
Interested in Language
to whom it may concern:
I am Chinese. My english grammer is bad.
Would very much appreciate it if somebody can help me.
Thank you in advance.
I should say two action or two actions?
Thanks a lot!
Welcome to UsingEnglish.com, ellie7377!
Clicking on the 'Thank' button can obviate the need for a new post saying 'Thanks', such is one of the many unwritten rules on this forum.
I am not a teacher.
'To whom it may concern' - it's formal and I love it. (Please remember it's not required when you make posts here.)
'Dear person whose name I don't know' - it's rather a strange salutation but I personally love it. (I'm not saying it's a suitable/correct salutation!)