“Fuimos” is this answer and no is “exto” is “sexto”
Estos dulces son para los ninos. I am not sure about the second part. It could be que sacan sus buenas notas.
1. tiene (possessive description)
2. sepa (non-realistic description; an ideal)
3. está (possessive; the clinic (not a clinic))
4. ayude (ningún, alguien, and nadie are always subjunctive)
5. pueda (an ideal; a surgeon (may or may not exist) and not the surgeon)
presente-(yo)- escribo
escribo is the verb in present tense for escribe
I hope this helps!