Answer:
1) Mucho instinto, 2) Menos fijo, 3) Nunca eventual, 4) Posiblemente ansioso
Step-by-step explanation:
Adverbs are words that modify the sense of a verb, an adjective and even another adverb.
1) Instinto
Mucho instinto
Mucho is an adverb related to quantity.
2) Fijo
Menos fijo
Menos is an adverb related to quantity.
3) Eventual
Nunca eventual
Nunca is an adverb related to negation.
4) Ansioso
Posiblemente ansioso
Posiblemente is an adverb related possibility or doubt.