Question

which sentence is more formal? once people reached an agreement on a new pay scale, everyone went back to work. once the negotiators reached an agreement on a new pay scale, the strikers went back to work.

Explanation:

Formal language often uses more specific and precise terms. The second sentence uses "negotiators" and "strikers" which are more specific and professional, while the first uses the vague "people" and "everyone". So the second sentence is more formal.

Answer:

Once the negotiators reached an agreement on a new pay scale, the strikers went back to work.