Which phrase correctly completes this conversation?

gloria, tú conoces al maestro de historia y geografia?

no, yo no

1. las conozco
2. los conozco
3. lo conozco
4. la conozco

Juan periodismo en la universidad hace dos años. a. estudiaron b. estudié c. estudiamos d. estudió

Ineed with spanish because i suck at it. is this right?

Pretend that you are giving advice on healthy living to a friend. write 5 sentences in spanish you believe your friend should do to have a healthier life. pistas (hints): debes- you should hacer ejercicio- to exercise no debes- you shouldn't mas- more necesitas- you need menos- fewer or less