Resposta:
Coloque (f) formal e (i) informal
a) ( ) Hello! How are you?
b) ( ) What&;s up?
c) ( ) Good bye, teacher!
d) ( ) See you!
e) ( ) Good morning, class!
f) ( ) Very well, thank you!
g) ( ) How are you doing?
h) ( ) Pretty good!
i) ( ) Thank you!
j) ( ) Nothing much at all!
k) ( ) Have a nice day!
l) ( ) Thanks a lot!
Explicação:espero ter ajudado
