Задайте общий, альтернативный, разделительный и специальные вопросы к предложению: every engineer knows properties of this metal.

1.       Every engineer knows properties of this metal, doesn`t he? разделительный
2.       Does every engineer know properties of this metal? общий
3.       Does every engineer or doctor know properties of this metal? альтернативный
4.       What does every engineer know? Специальный
5.       Which properties does every engineer know? Специальный
6.       Who knows properties of this metal? К подлежащему