Choose the most appropriate option to fill in the given blanks. They completed…

CONCEPT

Adjectives describe nouns or pronouns, whereas adverbs modify verbs, adjectives, or other adverbs. When a blank tells how an action is performed, the required form is generally an adverb.

APPLICATION

1. In completed the task ___, the blank tells how they completed the task, so it modifies the verb completed.

2. In submitted the report ___, the blank tells how they submitted the report, so it modifies the verb submitted.

3. The adverb forms of efficient and prompt are efficiently and promptly.

CONTRAST

• efficiently, prompt uses an adverb first and an adjective second.

• efficiently, promptly uses an adverb in both positions.

• efficient, promptly uses an adjective first and an adverb second.

• efficient, prompt uses adjectives in both positions.

RESULT

Therefore, the completed sentence is: They completed the task efficiently and submitted the report promptly.