Here are the correct answers to your questions:
A) For "We saw you. Nosotros _______ vimos."
- Correct answer: te
A) For "Did you call me? ¿Tú______ llamaste?"
- Correct answer: me
A) If you want to tell someone to stop, which word do you use in Spanish?
- Correct answer: parar
A) If you want to ask directions to the highway, what would you say?
- Correct answer: ¿Cómo se va a la carretera?
A) What would you say to your friend if you want him or her to leave you alone?
- Correct answer: Déjame en paz.