____ will do you good to do some exercise every morning.A.ItB.ThereC.ThoseD.You

问题描述:

____ will do you good to do some exercise every morning.A.ItB.ThereC.ThoseD.You

选A

B B morning exercises 固定搭配 晨练 exercise 运动

选A ,是形式主语,it代表后面的 do some exercise every morining

A 形式主语