ПОМОГИТЕ ПОЖАЛУЙСТА!!!

…he…for his test yet?
a)has, study b)have,study c)has, studied

I have…bought a present for Ann’s birthday
a)yet b)ago c)already

Tina met Andy three years…
a) ago b)since c)for

Helen has already…lunch
a)have b)has c)had

I have lived in Canada…ten years
a)since b)ever c)for