It's comunicas because the question is in the tu form.
You don't serve your family, or know them (because you already do).
Answer:
the 1st is yo Miro
2. nosotros miramos
3. tu miras
4. vosotros mirais
5. usted mira (pretty sure)
6. ustedes miran
Hope this helps :)
I'm going side to side, so Yo then nosotros then tu, etc.
I believe the answer is " Tu piensas "
