Ejercicio uso de verbos auxiliares

English auxiliary verbs (to be, to do, to have)
Fill in each blank space with the correct auxiliary verb:
1. ________ the teacher explain this properly?
  Did
  Was
  Had
2. ________ theprofessor angry?
  Did
  Was
  Had
3. ________ you spoken to him before he called you?
  Had
  Did
  Were
4. If you ________ told me, I would have never found out.
  didn't
  weren't
  hadn't5. ________ they seeing each other?
  Did
  Had
  Were | 6. ________ they continue seeing each other?
  Did
  Had
  Were
7. ________ you learn anything?
  Hadn't
  Didn't
  Weren't
8.________ he in my American History class?
  Didn't
  Wasn't
  Hadn't
9. I realized that I ________ learned a thing (= anything).
  didn't
  wasn't
  hadn't
10. ________ your sister living in Parisfor a while?
  Hadn't
  Wasn't
  Didn't |

English auxiliary verbs (to be, to do, to have)
Fill in each blank space with the correct auxiliary verb:
1. Did the teacher explain thisproperly?
  Did - ¿Explicó el profesor esto correctamente?
  Was
  Had
2. _Was_ the professor angry?
  Did
  Was - ¿El profesor estaba enfadado?
  Had
3. __Had__ you spoken to him before he calledyou?
  Had - Si usted le había hablado antes de que él se llamara
  Did
  Were
4. If you _hadn´t told me, I would have never found out.
  didn't
  weren't
  hadn't - Si usted no mehubiera dicho, yo nunca habría averiguado.
5. _Were_they seeing each other?
  Did
  Had
  Were - ¿Veían ellos el uno al otro? | 6. __Did_ they continue seeing each other?
  Did - ¿Siguieron ellosviendo el uno al otro?
  Had
  Were
7. __Didn´t__ you learn anything?
  Hadn't
  Didn't - ¿No aprendió usted nada?
  Weren't
8. __Wasn´t_ he in my American History class?
  Didn't
  Wasn't- ¿No era él en mi clase de Historia americana?
  Hadn't
9. I realized that I _hadn´t learned a thing (= anything).
  didn't
  wasn't
  hadn't - Realicé que yo no había aprendido una cosa...