You can accept or reject changes by using the and buttons located on Reviewing pane, the Review menu of the Control bar, or using the Command menu >Tools > Review.
To accept and reject an individual change:
1.Select the change on the Reviewing pane.
2.Click one of the buttons (Accept Change) or (Reject Change) displayed on the pane.
You can accept or reject an individual change using the Command menu >Tools > Review > Accept change/Reject change.
You can accept or reject all changes at once:
1.Go to the Review menu on the Control bar.
2.From the drop-down list of commands, select the desired command: Accept all changes or Reject all changes.
You can accept or reject all the changes made using the Command menu >Tools > Review > Accept all changes/Reject all changes.