Answer:
The correct conjugation of the verb <em>"hinchar"</em> that fills the blank is:
- <u><em>Hinchada</em></u>.
<em>- </em><em>Me di un golpe en la rodilla. Ahora la tengo </em><em><u>hinchada</u></em><em>.</em>
Explanation:
The translation of the sentence is:
- I hit my knee. Now I have it <u>swollen</u>.
<u>Swelling</u> is the reaction caused by a blow or contact with an irritating substance, <u>it is characterized by the redness of the area, pain and increased volume to the point that it is fully palpable with touch</u>.
As in English, when after the verb <em>"tener"</em>, which is <em>"have"</em> in English, another verb is used, regularly the latter is conjugated in <u>Past Participle</u>. In the case of the verb <em>"hinchar"</em> its conjugated form in Past Participle is <em>"hinchado"</em> or <u><em>"hinchada"</em></u> taking into account the gender of the noun to which it refers, as <em>"rodilla"</em> is a female noun, the right conjugation is <u><em>"hinchada"</em></u>.
