1. b. you use queria because if you say "quise" it means you stopped wanting to learn ballet sometime in the past.
2. b. you use conoci' because you've already met the professor in the past
A. the driver drives the train or A. El conductor conduce el tren.
Answer
24. Yo soy profesora
25. El es de España
26. Nosotros somos altos
Hope this helped!!
Past tens would be participaron
Future tens participaran.
