Q:

The drivers considered the speed-breakers a menace to smooth driving. 

• 1
  The speed-breakers were considered a menace to smooth driving by the drivers.
• 2
  The speed-breakers were considered a menace to smooth driving according to the drivers.
• 3
  The drivers were considered a menace to smooth driving the speed-breakers.
• 4
  The drivers were considered speed-breakers by the men- ace to smooth driving.