QUES: Cable Channels manufactured from recycled plastic

correct the punctuation.

CORRECTED: Cable Channels manufactured from recycled plastic.

QUES: Why should this be so and what can one do about it

correct the punctuation.

CORRECTED: Why should this be so, and what can one do about it?

QUES: But we have them nowthey are absolutely impotent

correct the punctuation.

CORRECTED:
But we have them nowthey are absolutely impotent.