Answer:
This are irregular verbs. In the preterit tense this verbs change the stem part and have different endings.
Question 1 with 1 blank (decir) usted dijo
Question 2 with 1 blank (hacer) nosotras hicimos
Question 3 with 1 blank (traer) yo traje
Question 4 with 1 blank (conducir) ellas condujeron
Question 5 with 1 blank (estar) ella estuvo
Question 6 with 1 blank (tener) tú tuviste
Question 7 with 1 blank (dar) ella y yo dimos
Question 8 with 1 blank (traducir) yo traduje
Question 9 with 1 blank (haber) ayer hubo
Question 10 with 1 blank (saber) usted supo
Question 11 with 1 blank (poner) ellos pusieron
Question 12 with 1 blank (venir) yo vine
Question 13 with 1 blank (poder) tú pudiste
Question 14 with 1 blank (querer) ustedes quisieron
Question 15 with 1 blank (estar) nosotros estuvimos
Question 16 with 1 blank (decir) tú dijiste
Question 17 with 1 blank (saber) ellos supieron
Question 18 with 1 blank (hacer) él hizo
Question 19 with 1 blank (poner) yo puse
Question 20 with 1 blank (traer) nosotras trajimos
Question 21 with 1 blank (tener) yo tuve
Question 22 with 1 blank (dar) tú diste
Question 23 with 1 blank (poder) ustedes pudimos
