The drawing shows Paulita throwing waste on the floor.

Paulita echa desperdicios al suelo./ Paulita throws waste on the ground.

The drawing shows Gregorio´s stomping ants on the grass.

Given that Gregorio acts as él (third person, singular, personal pronoun) we are going to conjugate the verbs accordingly

Pisar (to step)

Gregorio pisa (Gregorio steps)

Finally, we are adding the predicate:

Gregorio pisa hormigas en el jardín./ Gregorio steps on ants in the garden.

The drawing shows a man rescuing a kid from a fire.

The missing word is incendio (fire)

Let´s take a look at the full sentence:

El hombre rescató al niño del incendio./ The man rescued the boy from the fire.

The drawing shows Mercedes and Celia feeding a cat.

Given that Mercedes and Celia act as ellas (third person, plural, personal pronoun) we are going to conjugate the verbs accordingly

Dar de comer (to feed)

Mercedes y Celia dan de comer/ Mercedes and Celia feed.

Finally, we are adding the predicate with the missing word gato (cat):

Mercedes y Celia dan de comer al gato./ Mercedes and Celia feed the cat.

The drawing shows a pair of hunters catching a tiger.

Given that Los hombres acts as ellos (third person, plural, personal pronoun) we are going to conjugate the verbs accordingly

Atrapar (to catch)

Los hombres atrapan/ The men catch

Finally, we are adding the predicate with the missing word “tigre” (tiger):

Los hombres atrapan al tigre./ The men catch the tiger.

The drawing shows Anita and Tomás classifying bottles.

Given that Anita and Tomás act as ellos (third person, plural, personal pronoun) we are going to conjugate the verbs accordingly.

Clasificar (To sort)

Anita y Tomás clasifican/ Anita and Tomás sort

Finally, we are adding the predicate with the missing word “botellas” (bottles)

Anita y Tomás clasifican botellas./ Anita and Tomás sort bottles.

The drawing shows Carolina recycling things made up from glass and/ or plastic.

Given that Carolina acts as ella (third person, singular, personal pronoun) we are going to conjugate the verbs accordingly

Reciclar (to recycle)

Carolina recicla/ Carolina recycles.

Finally, we are adding the predicate:

Carolina recicla cosas de vidrio y de plástico./ Carolina recycles glass and plastic things.

The drawing shows a pair of kids feeding some elephants. There´s a “forbidden” sign next to the children.

It´s an impersonal se sentence; thus we are going to conjugate verb accordingly:

Prohibir (to forbid)

Se prohíbe (It´s forbidden)

Finally, we are adding the predicate with the missing word elefantes (elephants)
:
Se prohíbe dar de comer a los elefantes./ It´s forbidden to feed the elephants.