Answer:
La vie est très différente pour il.
Pour nous, c'est nouveau.
Nous parlons de ils.
Elle n'habite pas avec elles.
Avec vous, je parle français.
Step-by-step explanation:
a. "mon correspondant" from the mon, we can see that the person is male and singular
b. "ma sœur et moi" from the et and moi, there is more than one person involved and it includes "me"
c. "nos frères et sœurs" this part translates into our brothers and sisters, so the full sentence will be "We speak to our brothers and sisters". However, this would not be "nous" because it is not referring to "us" but "them"
d. "ses sœurs" from sœurs, we can see that it is a group of females.
e. "Marine et toi" from toi and et, there is more than one person other than the person "you", since vous also meant you in plural form, it would be best to vous