Answer: The right answer is actually "no estudies."
Explanation: Just to elaborate a little on the answer, it can be added that in this exercise they are asking you to conjugate the so-called imperative mood, which primarily expresses a command, an appeal, or a plea. The negative command of the verb "estudiar" (to study) in the second person singular is "no estudies" and it can be translated as "do not study."
Mi familia ESTA mirando una pelicula
usted ESTA cansado
Answer:
Ayer, Matilda ____Usó____ la llave tarjeta para entrar en su habitación individual. (1 point)