Answer:
las clases difíciles
Explanation:
Add an <em>-s</em> to <em>clase</em>, and add an <em>-es</em> to <em>difícil</em> because adjectives have to match the plurality of the word they describe.
Answer:
:)
Energy Conversion: chemical energy to electrical energy to thermal energy • As the coal burns, it produces heat (chemical to thermal)
El jardín es grande y bonito
La cocina es moderna
Las paredes son altas
Los comedores son elegantes