It wasn't Mark that you met in the shop.
HAVE
It .................... Mark that you met in the shop.
She was just going to have her breakfast when the phone rang.
ABOUT
She was just .................... breakfast when the phone rang.
Steve didn't manage to complete his work.
FAILED
Steve .................... his work.
How long has she been studying English?
BEGIN
When .................... studying English?
George wrote his last novel five years ago.
WAS
It .................... George wrote his last novel.
Nobody took any notice of his bad behaviour.
ATTENTION
Nobody .................... his bad behaviour.