One must have worked - it shows in your question !
In a sentence
"Whose responsibility is it to see whether it's working?"
They arent "they" are working on making themselves richer.
if he does, they arent working.
No words are contracted into apostrophes.
Inches is shown by two apostrophes (").
blown fuses
Only use apostrophes in contractions, and to show possession
The duration of Apostrophes - talk show - is 3600.0 seconds.
Apostrophe has only one name. It's apostrophe. The plural is apostrophes.
Apostrophes and quotation marks can be used interchangeably.
Apostrophes - talk show - ended on 1990-06-22.
Apostrophes - talk show - was created on 1975-01-10.