Please don’t throw paper on the ground. —________.

He’s ___________his purse, but he can’t ________ it.

How did you pass the challenging test—It was a long time________I found a series of suitable methods.

There’s______with your son’s ears. So don’t worry about him.

The goods on this counter ____ at a discount of 25%, like the typewriters, television receivers, dustbins, etc.[ ]