The initial idioms of the letter G

give an inch and they'll take a mile	give (someone) an out
give and take	give thought to (something)
give anything (for something)	give as good as get
give as good as one gets	give back
give bad marks to	give battle
give best shot	give birth to
give carte blanche	give cause for
give chapter and verse	give chase
give color to (something)	give credence to
give credit to (someone)	Give credit where credit is due
give currency	give due
give ear to	give enough rope
Give enough rope and he'll hang himself	give evidence of
give eye teeth for	give eyeteeth
give eyeteeth for	give first refusal