Llene el espacio con el adjetivo posesivo correcto. Acabo de casarme, ¿qué necesito hacer para cambiar
apellido?
A. su
B. tu
C. mi
D. nuestro

Tbh it can be all of them, tu would mean that he/she was saying “what do I have to do to change your last name?” Which is correct. Su, would say “what do I need to do to changer her last name?” Which is correct as well. Mi, would be “what do I have to do to change my last name?” And nuestro would be “what do I have to do to change our last name?”

The correct conjugation of the verb "hinchar" that fills the blank is:

Hinchada.

- Me di un golpe en la rodilla. Ahora la tengo hinchada.

Explanation:

The translation of the sentence is:

- I hit my knee. Now I have it swollen.

Swelling is the reaction caused by a blow or contact with an irritating substance, it is characterized by the redness of the area, pain and increased volume to the point that it is fully palpable with touch.

As in English, when after the verb "tener", which is "have" in English, another verb is used, regularly the latter is conjugated in Past Participle. In the case of the verb "hinchar" its conjugated form in Past Participle is "hinchado" or "hinchada" taking into account the gender of the noun to which it refers, as "rodilla" is a female noun, the right conjugation is "hinchada".