<span>I believe this is asking you to use an adjective to describe people who are from France. In English: "French". This is how it works in Spanish:
SINGULAR: If it were one person:
- Masculine: *frances* [with accent on *e*]
- Feminine: *francesa*
PLURAL: Two or more people:
- Masculine: *franceses*
- Masculine and feminine together (e.g. a boy and a girl): *franceses*
- Feminine (only girls or women): *francesas*
So, considering Pierre is male and Marie is female, could you guess what your answer should be...? hope this helps</span>
"Pierre y Marie son do Paris." means "Pierre and Marie are from Paris"
The blank is asking what is their nationality. Since Paris is in France, they are French. To say "French" in Spanish for 2 or more people with at least one male in the group (Pierre is the male), then you would say "franceses".
