We only go to that expensive restaurant very rarely.
Once in a blue moon
When I won the competition, I was very happy.
On cloud nine
He couldn’t come to school today because he is feeling sick.
Under the weather
The test was really easy! It was very simple.
A piece of cake
I hope you do well in your performance tonight. Good luck!
Break a leg!
My laptop was so expensive! It was very costly.
Cost an arm and a leg
She told a secret about the party.
Spill the beans
I have a math test tomorrow, so I need to study hard.
Hit the books
It’s raining very hard.
It`s raining cats and dogs