A : I need some stamps.
B : How many would you like?
A : 우표 좀 주세요.
B : 몇 장이나 필요하세요?
A : Do you think it will work?
B : It worked for me.
A : 이 약이 효과가 있을까요?
B : 저한테는 효과가 있었어요.
