Составить 5 предложений к этому предложению. drilling is known to involve heavy-duty equipment, a variety of fluids and sophisticated instrumentation. 1) общий. 2) специальный 3) альтернативный. 4) разделительный. 5) к подлежащему

1) Общий.
Is drilling known to involve heavy-duty equipment, a variety of fluids and sophisticated instrumentation?
2) Специальный
What is drilling known to involve?
3) Альтернативный.
Is drilling known to involve heavy-duty equipment or sophisticated instrumentation?
4) Разделительный.
Drilling is known to involve heavy-duty equipment, a variety of fluids and sophisticated instrumentation, isn't it?
5) К подлежащему
What is known to involve heavy-duty equipment, a variety of fluids and sophisticated instrumentation?