1. un salvavidas
2. un paraguas
3. gafas de sol
4. ejercicio
5. centro comercial
6. tarjeta
(hope this helps)
Put "no" after the verb when forming a question
The answer would be "sabes" it means "do you know" conoces mean also "do you know" but it refears if you know someone and sabes is if you know about something, "sabemos" means we know and "conosiste" means did you meet
Hope this helps
Answer:
12. A mi 13. ella 14. contigo
These make the most sense in the sentences.