Fill in the blank with appropriate interjection.
_______! What have you made?

The correct answer is: Yuck

Interjections are words that you can use to express a strong sense of emotion or feeling. It does not matter what tense the sentence is, who or what the subject is, what the verbs you are using, or anything else. 'Yuck! What have you made?' 'Yuck' is an interjection, which is a indicate how you feel about something, typically outside of a sentence.