Answer:
The correct answer is option C.maestro-agradables.
Explanation:
In Spanish, adjectives must match in gender and number with the noun to which they are giving the qualifier.
In this case we have a singular word: <em>maestro </em>and a plural adjective that accompanies it: <em>agradables</em>. Together they do not form a correct description.
The correct way would be:
Maestro agradable.
or
Maestros agradables.
Mientras unos dormían, los otros limpiaban.
He doesn’t know your name because he asks “¿Como te llamas?” That means what is your name.
The indefinite article for the word libretas is unas