Los griegos fueron grandes navegantes y costruyeron unos barcos especiales para la lucha, que denominaban birremes o trirremes segun las filas de remeros que tenian.
This could be sorted under Observations or Inference in the scientific process/investigation
Most of these questions were already in present tense but here they are in English. 1. We drink many soft drinks.
2. You listen to the professor.
3.She speaks English with her family.
4. We write letters.
5.They have not invoiced luggage
But here are just a few. I hope I helped you better with this.