The answer will be error relativo
Sujeto: perro
verbo: acostado
sustantivo: perro y Piso
adjectivo: ninguno
I hope I was able to help some.
To change "lento" to an adverb you can put "lentamente"
It would be the second option hablen
Quiero que ustedes "HABLEN" español.
Hope it helps:)