Answer:
The correct answers are:
<em>"Yo he </em><em>vuelto</em><em> a casa". </em>
<em>"Yo he </em><em>puesto</em><em> dinero".</em>
<em>"Yo he </em><em>escrito</em><em> una carta".</em>
<em>"Yo he </em><em>hecho</em><em> mi tarea".</em>
<em>"Yo he </em><em>dicho</em><em> la verdad".</em>
Explanation:
The present perfect in Spanish is known as <em>"Pretérito perfecto"</em> that refers to <em>actions already happened or that have been happening until the actual moment or the near future. </em>
In order to use it in a sentence, we have to use an auxiliary verb:<em> "haber", </em>which has to be conjugated according to the number and person of the subject, and then use the main verb in participle. The structure of a sentence in present perfect goes like this: subject + auxiliar verb "haber" conjugated accordingly to the subject + main verb in participle + object.
You can obtain participle in Spanish by substituting the suffix -<em>ar</em> of the verbs in infinitive for the suffix<em> -ado</em>, and substituting the suffix -<em>er</em> and <em>-ir</em> of the verbs in infinitive for the suffix <em>-ido</em>. But there are some <em>irregular verbs</em> that does not follow this rule and have a different participle, such as: <em>escribir (escrito), volver (vuelto), ver (visto), morir (muerto), abrir (abierto), decir (dicho), imprimir (impreso), freir (frito), hacer (hecho), poner (puesto).</em>
Now, five sentences have the singular first person subject (<em>yo</em><em>)</em>, so the auxiliar verb "<em>haber</em>" has to agree with this in the conjugation, thus it has to be "<em>he</em>", then the five verbs used are in the list of irregular verbs, that is, <em>"volver = </em><em>vuelto</em><em>", "poner = </em><em>puesto</em><em>", "escribir =</em><em>escrito</em><em>", "hacer = </em><em>hecho</em><em>" and "decir = </em><em>dicho</em><em>".</em> After the main verb, we use an object that agrees with the meaning of the sentences.
