Car Riders How would one say this phrase in Spanish. It is referring to children who are picked up from school by their parents. "Car riders" as opposed to "bus riders."

Sound Instruction How would one say this phrase in Spanish? Thanks for your help.

Dog eat dog? What is the equivalent to this saying in Spanish? Thanks for your help.

Completion? How would one say in Spanish: "At the completion of the New Testament canon" in Spanish? (I want to use "terminación " bit that doesn't sound right to my ears). Also: "Perfect means whole, mature, and complete?" ("completo?") Complete and completion are the words I'm looking for.

Yerba or Hierba I am a Spanish teacher and I introduced song lyrics that read, "Pinto la yerba verde como la esperanza." I introduced the word 'yerba' to mean 'grass' but I was corrected by a student from Spain who said that it is "herb" and grass is translated as 'hierba.' Technically, I think she might be correct but I'm thinking that the lyrics were meant to colloquially say 'grass.' I'm not sure. Can 'yerba' be used to mean 'grass?" Some Spanish-English dictionaries seem to indicate that. So is there a difference between Spain and Latin America with this word usage? Thank you for your help. I'm confused.

Reemplazar vs reponer Could someone tell me the difference between the two words? Thanks.

Exposure? How would one say, "She needs to be exposed to the language" in Spanish? Thank you for your help.

Brindar? ¿Cuáles son las diferencias entre brindar, ofrecer, y proporcionar? ¿Puede dar ejemplos? Gracias por la ayuda.

Picar? Are there two different words for "itch" and "sting" in Spanish? I hear picar used for both. How can one determine the difference? Thanks in advance.