The following file contains a compilation of different lessons on how to ask questions, but this time with the explanations in Spanish, which will help you understand question formation more easily. The keys to the exercises will be uploaded/ shared with you via e-mail soon!
Some students asked for some grammar explanations in Spanish. At mansión de inglés you have explanations in Spanish and also extra exercises if you click "ejercicios" at the bottom of the page on the right. There are both grammar and vocabulary pages.
If you are feeling particularly adventurous, I encourage you to try out one of Roald Dahl's children's books, which are also available in the library, or the Brother's Grimm fairy tales available here.