Answer:
Características de la gramática:
Carácter sincrónico y actual, se ocupa de describir todos los elementos que constituyen a un determinado sistema lingüístico. Carácter descriptivo, expone organizadamente todas las unidades que estructuran el Lenguaje.
I would say 3, 5 or 6
3: is its a shame that you dont feel well, but we can probably cross that out considering its not written correctly, dosent sound right,
5: I suggest you come early
6: I recommend that you eat a lot of fruit
i would go with 6