Multiple choice Commas: Eugene bought frog warts laughing grass and 20 packs of slippery sloths. Warts, grass, sloths Bought, Warts, grass, Warts, Reveal answer Fill a bubble to check yourself C Correct answer Explanation Commas are used to separate items in a list. The list includes 'frog warts', 'laughing grass', and '20 packs of slippery sloths', requiring commas after 'warts' and 'grass'.