The chandeliers in Governor's mansion are disassembled and cleaned once a year.
I disassembled out of the hall
Here is the sentence with the apostrophes: You can't belive she didn't go?
One must have worked - it shows in your question !
It should be: The boys' toilets are disgusting.
You don't need any apostrophes in this sentence :)
None - the sentence is fine as it is.
You won't use apostrophes in any part of that sentence.
The corrected sentence with appropriate apostrophes is: "The classes' school councillors all met every Thursday." The apostrophe after "classes" indicates that the school councillors belong to multiple classes.
The kings and queens of England have appointed the governors general in Canada since the 1860s.
The correct placement of apostrophes in your sentence would be: "Mike's brother's friend's cousin did a brilliant project on Saturn's moons." The apostrophes indicate possession for Mike (his brother), his brother (his friend), and the moons belonging to Saturn.
A good way to put it in a sentence is this : I disassembled the clock trying to figure out how it works. I never assemble anything I disassemble everything.
"Whose responsibility is it to see whether it's working?"