Fill in the blank with the most appropriate word. A lot of planes fly ____the city every day.
The correct option is D Over
The given sentence indicates a crossing over.
Over is used to indicate a movement across a barrier. It is also used to show a vertical or inclined position. Thus option C is the correct answer.
On is used to indicate place,specific date, direction, by means of or about; Through is used to indicate movement into at one side or point and out at another and especially the opposite side of; Between is used to indicate two clearly separate objects.