Hi
Son los pantalones de Roberto. Son sus pantalones.
A- tus ==> your + plural noun <em>(not formal)</em>
B- mis ==> mines + pl. noun
C- sus ==> his + pl. noun <em>(his + your plural and formal)</em>
D- su ==> his + sing. noun <em>(his + your formal)</em>
+ singular noun + plural noun
yo mi mis
tú tu tus <em>(informal)</em>
él/ella/Us su sus
nosotros nuestro/ nuestra nuestros/nuestras
vosotros vuestro/vuestra vuestros/vuestras
ellos/ellas/Uds su sus
<em>They are Roberto's trousers. They are his trousers.</em>
The possessive adjective agrees in gender and number with the possessed noun, annd NOT with the possessor
Both are big and have lots of land to plant, but also have water surrounding them to travel
Hey, i can't upload an audio, should the sentences be written?