Answer:
2 can fit,
son, which means are
or
eran which means were,
Explanation:
both fit, one is in the present, one in the past
1-Mi(s)
2-su(s)
3-su(s)
4-mio/mia
5-el/ella
6-de ellos
7-nuestros
8-nuestros
9-mi(s)
10-mi (s)
B