HELP PLS (stem changing verbs)

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?

59: 33 according to the article, which of the following is not one of the reasons flamenco is special? a. it is not popular in the west, but it is a western form of music. c. the dance also serves as an instrument. b. the music, song, and dance can all be improvised. d. it is folk music of high quality and complexity.

Ineed some one to translate this for my home work !