Answer:
Here we must complete the sentences: 
1) el camarero sirvió unas chuletas de ____. 
This says: 
" 
the waiter served some ____ chops." 
atún (tuna) 
pescado (fish) 
 cerdo (pork) 
The option that makes sense is cerdo (pork) 
el camarero sirvió unas chuletas de cerdo. 
2) tú traes el ____ blanco a la cena, ¿no? 
This says: 
you bring the ____ white to dinner, right? 
Here we don't have options, but for context, we can complete it; for example, something that you may use at the dinner and can be color white is a tablecloth or mantel in Spanish, so we can complete the sentence as: 
tú traes el mantel blanco a la cena, ¿no?