1.  How about the rattling of metal, not plastic, garbage cans?

2.  Indeed they can.

3.  Now I could.

4.  Well as near as half past four he can.

5.  Well of course you can.

6.  Apparently they can.

7.  As a matter of fact, we could.

8.  As a matter of fact, you can.

9.  As hard as I try to walk through my own garden without pulling a weed or snapping off an offending twig, I cannot.

10.  As only he can.