To hit the nail on the head
When pigs fly
It's Greek to me
Once a blue moon
To pull someone's leg
To drive someone up the wall
To cut corners
Let the cat out of the bag
Flogging a dead horse
A one horse race
Ahead of the game
On the ropes
A major player
To be neck and neck
Move the goalpost
Keep your eye on the ball
Concrete is an ingredient of cement
To maintain
To keep
To model
To form
To renovate
To refurbish
To freshen up
To live
Shelter in which people live
A person who lives somewhere