Answer:
The adverb in the sentence "Tomorrow we will go on a field trip" is "tomorrow."
An adverb is a word that modifies a verb, adjective, or another adverb. In this sentence, "tomorrow" modifies the verb "go." It tells us when we will go on the field trip.
Adverbs can be classified into different types, depending on how they modify the word they are describing. "Tomorrow" is an adverb of time, because it tells us when something will happen. Other types of adverbs include adverbs of place, manner, and degree.
Step-by-step explanation: