<span>1. Jaime se levanta a las ocho.
<em>Jaime gets up at eight.</em>
2. Yo uso Crest cuando yo me cepillo los dientes.
<em>I use Crest when I brush my teeth.</em>
3. Ustedes no se afeitan por la manana.
<em>You don't shave in the morning.</em>
4. Marcos no se seca el pelo después de ducharse.
<em>Marcos does not dry his hair after showering.</em>
5. Tú te lavas las manos con el jabón
<em>You wash your hands with soap.</em>
6. Ricardo y Teresita se miran en el espejo.
<em>Ricardo and Teresita look in the mirror.</em>
7. Nosotros nos cepillamos el pelo con el cepillo.
<em>We brush our hair with the brush.</em>
8. Ustedes se lavan en el lavabo.
<em>You wash in the sink.</em>
9. Ustedes no se cepillan a las diez de la noche.
<em>You do not brush at ten o'clock at night.</em>
</span>
<span>"Uno come muy bien en México".
</span>
Answer:
"ser" and "estar", these two verbs differ on the condition of permanency of that what is being explained in the sentence.
It is better to use "ser" when you are expressing something that will be permanent, or most likely will be permanent.
it is better to use "estar" to express something that is likely to end in a short or medium term.
sometimes the verbs are interchangeable, in such cases is not needed to explain the length of the state expressed by the sentence.
The third sentence in the questions uses the literal translation from the English present continuous time to the Spanish "présente continuo"
