· Vikram Aruchamy · Google Docs
How to See Resolved Comments in Google Docs (and Reopen Them)
To see resolved comments in Google Docs, click Show all comments at the top right, then click the All types filter and choose resolved comments. To restore one, click Re-open at the top right of the comment. Ctrl + Alt + Shift + A (Cmd + Option + Shift + A on Mac) opens the comment history.