Answer:
you (s) train ⇒ tú entrenas, usted entrena
you (pl) train ⇒ ustedes entrenan
they train ⇒ ellas entrenan, ellos entrenan
he trains ⇒ él entrena
Answer:
3. Colocamos las lápices dentro de una lapicera_______
5. Usamos tiza o marcadores para escribir en un pizarrón________
Im not sure but you just have to write "the" the correct way for the word like casa is La casa and dormitorios is un dormitorios. Hope this helps!
The answer's A, me as a Venezuelan I know it, wish you the best luck