Yo pague en D. la recepcion.
This means - I paid at the reception
A. La llave is a key, B. el ascensor is an elevator, C. el balcon is balcony.
The answer is <span>estacionamiento, meaning parking lot.
</span>
<span>Yo limpio mi carro.
</span>
Since <em>limpiar</em> is an -ar verb, when you conjugate it into the first person of the present tense, you simply replace the -ar ending with -o.
So, limpiar turns into limpio.
#2 is- El es el director de la escuela.
#3 is- I study science and work at a laboratory.