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  • 1 mistakes allowed to pass
  • Minimum passing marks is 90%

You have a two-hour drive to make on a motorway. You have a cold and your nose is slightly blocked. You take an off-the-shelf cold remedy to help reduce the symptoms. It’s a cold and dull day, and the car heater is on. You also turn on your dipped headlights. An hour into the boring journey, you begin to feel drowsy.