George was cleaning the windows on the eighteenth floor of an office block when there was a massive power failure. The electric hoist on his platform was immoblized.
George walked down the stairs. He was cleaning the inside of the windows.
Làm cách nào để có thể ném được quả bóng tennis đi mà nó vẫn trở lại về phía bạn được?
Ném nó lên trời