Estos libros son tuyos.
These books are yours.
Explanation: This possessive pronoun refers to "libros", which is a masculine and plural noun, therefore the pronoun must agree on gender and number with the noun it replaces. Tuyos.
its asking when do you go to the beach
a) every summer
c) and c also means never
pudes esplicar la preguta mejor.
que es tu pregunta?