1) They are speaking Arabic.
Contracted form: They're speaking Arabic.
Question: Are they speaking Arabic? Negative: They aren't speaking Arabic.
2) I am traveling around the world by plane.
Where: Where are you traveling around the world?
How: How are you traveling around the world?
3) Jack and Paul are opening the door of the shop.
What: What are Jack and Paul opening? Who: Who is opening the door of the shop?
تاج یادت نره
