Choose the possessive adjective that would match each phrase. This adjective must match the person it belongs to AND match the noun (in gender and number).
my books
mis libros (masculine, plural)
The possessive adjective that matches "my books" would be "my" because both the person it belongs to (first person singular) and the noun (books) are singular.
To determine the possessive adjective that matches the phrase "my books," we need to consider both the person it belongs to and match the noun in gender and number.
In this case, since the phrase uses "my," we can infer that it refers to the first person singular possessive adjective. We also need to ensure that the possessive adjective matches the noun "books" in gender and number.
Assuming "books" is plural and does not have a gender associated with it, the possessive adjective that matches the phrase "my books" is "my."