A
A person wants to know what you are thinking
Penny for your thoughts
Still to be settled or not yet resolved
Up in the air
To slow down or be patient
Hold your horses
Something that is very expensive
Pay an arm and a leg
An important topic that no one wants to talk about
Elephant in the room
To work late into the night
Burn the Midnight Oil
To pay the expenses
Foot the bill
Something that is very cheap; easy to get
Dime a dozen
To abandon someone in an unfortunate situation or danger
Hang out to dry
To be embarrassed by looking foolish
Egg on your face