問題詳情

356Many vehicles have a cigarette lighter installed in the dashboard which requires a simple touch of a button to operate. Drivers
(A) are required to concentrate on driving and may not use the cigarette lighter when operating the vehicle.
(B) may use the cigarette lighter if they feel they can do so safely.
(C) should use the cigarette lighter because smokingwhile driving will keep them awake and more alert.

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