Ответ:
Has- когда подлежащее (местоимение) 3 лица ед. числа. She has, he has, it has.
Have- в остальных случаях, то есть, 1 лицо, 2 лицо и множ. число.
- America has a president.
- They have no kids.
- You have blue eyes.
- We have a blue car.
- He has breakfast at 7 am.
- They have dinner at 7 pm.
- The film has many fans.
- I have more books than you
- Do you have a mailbox?