Answer:
he should take a break and don't review too hard or else it will result in forgetting everything he'd learned the past day.
Explanation:
1. We can combine sentences with an adjective if they are talking about the same noun.
Adjectives modify nouns.
2. We can combine sentences with an adverb if they are talking about the same action.
Adverbs modify linking verbs and action verbs.
3. We can combine sentences with a prepositional phrase if they are talking about the same location.
Prepositional phrases show where an noun is. In other words, it shows the location of the noun.
