You would say "Ella es baja" because es is the she form of ser.
1. Helio
2. Bastón
3. Ayer
4. Tiempo
5.Pista
6. Casco
The Mexicans put petals on the ground because the flower petals form a path for the spirits to bring them to their banquet.
Recibí esta carta - I received this letter.
Recibo - I receive this letter.
Espero que te ayude!