<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.
That's a tricky question because while a "siesta" is indeed a nap that most do, it is not only done in the USA. So I would have to say the answer is TRUE if I were someone living in the USA. Hope that helps!
The 3rd one is the one that is correct
