Lesquelles de ces phrases font référence à une habiture passée ? Pourquoi ?

1) I used to be a cook. Now I am a writer for a cooking blog.
2) My father used to say: “what we eat and what we cook can tell us a lot about heritage, race and culture.”
3) I used to wonder what he meant. But now I understand.
4) It's actually a sentence I used to write an article.

Complétez les trous avec la bonne forme de used to et du verbe entre parenthèse.

1) Gaby

(dance) for hours before she got tired.
2) She

(be) the soul of our dance group.
3) She

(not / sleep) much.
4) Oh really? What kind of dance

(like) the most?