Here are the answers to your questions:
Question 1 Yo les digo la verdad a vosotros.
- Correct answer: les
Question 2 Nosotros decimos la hora a ellos.
- Correct answer: les
Question 3 Teresa da la cámara a mí.
- Correct answer: me
Question 4 Which is not a problem that the indigenous people of México face?
- Correct answer: multiculturalism
Question 5 Which is not an activity of the YMCA's volunteer program in México?
- Correct answer: residential programs for the elderly
If you have any more questions or need further assistance, feel free to ask!