Enter a form of the adjective feliz to correctly complete the sentence. los niños están i'm really confused, can someone me?

Fill the blank with the correct form of the verb ir. luisa ahora

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?

3. choose the answer that best completes the sentence. (hablar) con mi amiga elena. (2 points) a: hablan b: hablas c: hablamos d: habla