which of the following sentences is not properly punctuated?

Toni Morrison said , " I wrote my first novel because I wanted to read it"

Lose no time be always employed in something useful

All of us -- I mean most of us -- look forward to vacation .

Their motto was "all for one "

প্রশ্নের বর্ণনাঃ শীঘ্রই আসছে...