Respuesta :
Answer:
scientists reached a decision about when to begin the experiment
Explanation:
this revision sentence uses active voice as in this the action of decision is taken by scientist in accordance with the main definition of active voice which says that an action should be done by a person.
The revision that actually changes the sentence so that it uses the active voice is: Scientists reached a decision about when to begin the experiment.
What is active voice?
Active voice actually refers to the form of sentence whereby the subject is the performer of the action. In active voice, the subject performs the action while in passive voice, the subject receives the action.
We can see that if the given sentence is properly revised, the active voice will be "Scientists reached a decision about when to begin the experiment."
Learn more about active voice on https://brainly.com/question/25897080