They had just started to cook dinner when their friends arrived at the door with some delicious take-out food.

Which word is the adverb modifying a verb?

cook

delicious

just

take-out

it would be delicious

Answer: just

Explanation: The adverb "just" is modifying the verb "started," to indicate that the action had begun recently, while all the other words have different functions: "delicious" is an adjective modifying the noun phrase "take-out food," "cook" is a verb and "take-out" functions here as an adjective modifying the noun "food."