What do the priest and congregation say during the partaking of the Body and Blood?

“He who is giving the Body says, ‘This is the body of Christ, which He gave up for our sins.’ The communicant then says, ‘Amen.’ And again, he who is giving the Blood says, ‘This is the blood of Christ, which He shed for us.’ The communicants respond saying, ‘Amen.’”¹⁵⁶⁶