A

Add fuel to the fire - When you do something that makes a bad situation worse Afraid of your own shadow - To be extremely nervous and easily frightened Ace up your sleeve -Have something that will give you an advantage that other people don't know about Achilles hill - Showing weakness Air your dirty laundry in public -To discuss private personal information in public Albatross around your neck -A problem resulting from something you did that stops you from being successful All ears -to be waiting with interest to hear what somebody has to say All that glitters is not gold -appearance can be deceptive and things that look or sound valuable can be worthless All thumbs -  having difficulty, clumsy Ants in your pants - excited about something so can not wait Apple of your eye - that person (or thing) that you care for the most As the crow flies -the shortest route between two points (measure in straight line) Asleep at the switch - not doing their job or taking their responsibilities very carefully At the drop of a hat -do it immediately At the end of the rope - at the limit of your patience or endurance Ax to grind -to have a selfish reason for saying or doing something