1. Beg pardon, but have you seen my ball-pen?

2. May I borrow your ballpen? Certainly!

3. He rooted about in all his drawers and found the lost ball-pen at last.

4. Mechanical Pencil, Refill Leads , Ballpen Wooden Pencil, Eraser, Stationery PlasticPlastic Products.

5. These are my ballpen.