Which one does not belong o? On April. December. November. June
To determine which one does not belong out of the given options: "On April," "December," "November," and "June," you can first observe that three of them are month names, while one of them is a preposition followed by a month.
The phrase "On April" seems to be the odd one out as it does not conform to the pattern of the other options being actual month names. Therefore, "On April" does not belong in this group.