Answer:
1. A: Escribiste.
1. B: Escribí.
2. A: Aprendiste.
2. B: Aprendí.
3. A: Conseguiste.
3. B: Conseguí.
4. A: Escojiste.
4. B: Escojí
Explanation: I hope this helps you. I also found something that might help you with your Spanish homework. I hope this picture and website help.