1. está
2. tiene
3. puedo
4. pones
5. hacemos
6. dice
7. trae
8. viene
9. traen
10. voy
11. fuiste
12. fuimos
13. dicen
14. tienen
15. hace
16. estuvieron
11, 12, and 16 are in the past tense the rest are in present tense.
Also check out Spanishdict.com it helps me :)
It's asking what size does Carlos need. Small medium or large, in the text look for where it says Chico, mediano, or grande.
What is the gender and number