Circle the correct form of the verb. 1)animals in the zoo are fed/have been fed twice a day. 2)the wails of the hall were painted/have been painted theree days aqo. 3)the building of this bridge is finished/will be finished in a month. 4)the dinner was just cooked/has just been cooked/ 5)the letters are delivered/have been delivered to our office every day. 6)the invitations weren't sent/haven't been sent yet.