The approaching exam, they knew, would be a snap. e It is easy /a snap /a piece of cake/no sweat. Paraphrase They knew the approaching exam would be very easy. You can use each of the following expressions e to say that something is easyThe approaching exam, they knew, would be a snap. They knew the approaching exam would be very easy. You can use each of the following expressions to say that something is easy. Paraphrase It is easy / a snap /a piece of cake / no sweat