... on the bandwagon.
Jump on the bandwagon.
Cross that ... when you come to it.
Cross that bridge when you come to it.
Actions ... louder than words.
Actions speak louder than words.
... the hatchet.
Bury the hatchet.
Let ... dogs lie.
Let sleeping dogs lie.
It's a ... of cake.
It's a piece of cake.
Once in a ... moon.
Once in a blue moon.
Don't put all your eggs in one ....
Don't put all your eggs in one basket.
Bite off more than you can ....
Bite off more than you can chew.
Kill ... birds with one stone.
Kill two birds with one stone.
You're ... up the wrong tree.
You're barking up the wrong tree.
Sit on the ....
Sit on the fence.
It's a ... in the bucket.
It's a drop in the bucket.
... the hook.
Off the hook.
Curiosity ... the cat.
Curiosity killed the cat.
Let's ... the knot.
Let's tie the knot.
As ... as a rock.
As solid as a rock.
She's a ... horse.
She's a dark horse.
The best thing since ... bread.
The best thing since sliced bread.
Feeling ... the weather.
Feeling under the weather.
... your tongue.
Bite your tongue.
A leopard can't ... its spots.
A leopard can't change its spots.
Every cloud has a ... lining.
Every cloud has a silver lining.
I'll be glad to see the ... of him.
I'll be glad to see the back of him.
Take it with a ... of salt.
Take it with a grain of salt.
It's a ... in disguise.
It's a blessing in disguise.
It's the ... of both worlds.
It's the best of both worlds.
At the ... of a hat.
At the drop of a hat.
Burn the ... oil.
Burn the midnight oil.
Close, but no ....
Close, but no cigar.
The ball is in your ....
The ball is in your court.
I ... a rat.
I smell a rat.