A. Merry Christmas!
B. Happy New Year!
C. Happy birthday!
D. Thank you very much.
E. You're welcome.
A: Welcome to my birthday party.
B: .
A: Welcome to our New Year party.
A: Welcome to our school.
⑴ A. Happy New Year!
⑵ B. Happy Mother's Day!
⑶ C. Merry Christmas!
⑷ D. Happy birthday!