The initial idioms of the letter I

in the bag	in the balance
in the ballpark	in the bargain
in the best of health	in the biblical sense
in the black	in the blink of an eye
in the blood	in the bosom of
in the box seat	in the buff
in the business of	in the cactus
in the cards	in the case of
in the catbird seat	in charge
in the chips	in the clear
in the clouds	in the cold light of day
in the context of	In the country of the blind, the one-eyed man is k
in the course of	in the cross hairs
in the dark	in the days of Queen Dick
in the dead of night	in the dock