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Complete the celebrity chef's interview about her childhood eating habits. Select ALL the grammatically correct options to fill in the blank.
"Believe it or not, I _____ vegetables when I was a kid! Now I run a famous vegetarian restaurant."
The correct answers are didn't use to eat and never used to eat.
For negative past habits, we use didn't use to + base verb or never used to + base verb.
Notice that after "didn't", we drop the "d" and just write "use to". "Didn't used to eating" mixes up different grammar rules, and "wasn't used to" means "wasn't accustomed to" and requires an -ing verb.