Resposta :
2)
a- v
b- v
d-f
e- it's - v
e- f
3)
I'm
you're
she's
he's
it's
we're
they're
4)
1- informal
2- formal
3- formal
4- informal
5- informal
6- formal
7- formal
8- informal
9- informal
10- formal
11- formal
12- informal
13- informal
14- formal