Ответ:
4. They their children all these years. Look at the result. Both the boys do whatever they like to do.
SPOIL
Используем Present Perfect Continuous, так как действие происходило на протяжении длительного времени и все еще имеет последствия.
Ответ: They have been spoiling their children all these years. Look at the result. Both the boys do whatever they like to do.
