HELP ME PLZ

Okay so i'm taking an online spanish course (penn foster), and in the study guide, you have to create a bunch of sentences with words you've learned so far. translating, reading, and those kinds of things are fairly easy, but when it comes to making my own sentences, my brain just kinda waltz's away. anyone got any tips?

Me with both parts of this () (its due tomorrow)

¿cuáles eran los dioses principales de los incas? a el dios del sol y la lunab. el dios del sol y la tierrac. el dios de la lunad. el dios único