Ответ:

Возможное заполнение с использованием сложного дополнения:

  1. I never saw John cry.
  2. I want you to help me.
  3. They watched their pets play in the garden.
  4. She heard Lora singing in the next room.
  5. We couldn't expect him to arrive so early.
  6. I saw Kate cross the street.
  7. My teacher advised me to work harder.
  8. He felt Lucy touch his shoulder.

После глаголов восприятия используется конструкция «объект + инфинитив без to» или Participle I; после want, expect, advise — «объект + to-инфинитив».