Would you mind my sitting here—______! The man next to me has just gone. The seat is empty now.

Shall we go out for a walk—SorryI’m too busyto forthe moment

_______the Internet is of great help. I don’t think it’s a good idea to spend too much time on it.

I’d like a pen which ________well.—Will this one_______

It is said the cost of medical care today is ten timesas ____ as it was ten years ago.