Buatin dialog tentang Expression of Gratitude temanya someone has just bought you lunch in your birthday.

a :"hey b,yesterday is your birthday right?"
b :'how did you know that?"
a :"cause i am your friend :D"
b :"thank you so much a"
a :"by the way,i have a present for u"
b :"what is that?"
a :"i brought you a lunch"
b :"thanks a"
a :"your welcome pal"