Multiple choice

an agreement to work together

  1. alliance

  2. cooperate

  3. colleague

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An alliance is a formal agreement or treaty between nations, groups, or individuals to cooperate for specific purposes. "Cooperate" is a verb describing the action of working together, rather than the noun representing the agreement itself. A "colleague" is a person with whom one works.