A.Thanks.
B.Cheers.
C.Brilliant.
D.You star.


A.Thanks.
B.Cheers.
C.Nice one.
D.Sure.
A.culture.
B.gender.
C.formality.
D.circumstance.
A.show their gratitude to others.
B.behave themselves well.
C.continue their acts of kindness.
D.stop worrying about bad manners.