Finish the idiom: It's a piece of ......
It's a piece of cake.
Finish the idiom: Speak of the .......
Speak of the devil
Finish the idiom: Cost an arm and a....
Cost an arm and a leg
Finish the idiom: Once in a blue......
Once in a blue moon
Finish the idiom: Take it with a ..... of salt
Take it with a grain/pinch of salt
Finish the idiom: When pigs .......
When pigs fly
Finish the idiom: Cry over ..... milk
Cry over spilt milk
Finish the idiom: Add ..... to the fire
Add fuel to the fire
Finish the idiom: Off the beaten......
Off the beaten track
Finish the idiom: In hot .....
In hot water
Finish the idiom: In the same.....
To be in the same boat
Finish the idiom: Go the extra.....
Go the extra mile
Finish the idiom: It rings a .....
It rings a bell
Finish the idiom: Back to .....one
Back to square one
to be very easy
It's a piece of cake.
something that you say when someone you have been talking about suddenly appears
Speak of the devil
