The author name of Harry Pottar is G.K. Rawling.

The ball is in between his two legs.

The bird was killed by a cruel boy. (Active) = A cruel boy killed the bird.

The book is on the table.

The books read well. (Passive) = The books are read well.

The boy resembles to his father.  = The boy resembles his father.

The boy was diligent, so the teacher passed him  = The teacher passed the boy for his diligence

The Brigadier ordered the soldiers to march on.

The captain orderd to the soldiers to fire on.

The chair is made of wood. 

The children are afraid of ghost.

The children are making an awful din.

The children gloried in the nice dish.

The Coal is black but very useful to us.

The conditions that must be fulfilled to with the Nobel prize are to invent or discover something that would have the greatest benefit to humanity in a particular year.