Which of the following verb has a stem change from a to up in the preterite tense

a dar b hablar c saber d andar

C. -> Saber

Explanation:

You can see the stem change from "a" to "up" in the preterite tense.

Present Simple tense of Saber (to know)

Yo sé

Tu sabes

Él/Ella sabe

Nosotros sabemos

Vosotros sabéis

Ellos/ellas saben

Perfect Preterite Simple tense of Saber (to know)

Yo supe

Tu supiste

Él/ella supo

Nosotros supimos

Vosotros supisteis

Ellos/ellas supieron

Native speaker over here.

hola, mi nombre es yo tengo hermanos y hermanas. mis padres celebretamos navidad juntos.

fill in the balnks and add a couple of remarks and you should have it!