Answer:
11. Hablaba
12. Escuchaba, le llamó/llamó
13. Estaban, terminó
14. Era, trepaba
15. Preparaba
16. Corría, cayó
17. Tenía, compró
Explanation: For the second sentence, I wasn't sure if it was saying that she called or called he so I put both. I hope this helps. :)
