1.   One of them would keep a look-out on the road behind to warn us of approaching vehicles.

2.   Pawliczek carefully scanned the approaching vehicle.

3.   When it hears an approaching vehicle, it launches a device into the air that uses a heat sensor to direct a potent projectile down at the target.

4.   Yet like a deer frozen in the beam of the headlights of an approaching vehicle, it remained silent.

5.   An approaching vehicle frightened them off.

6.   I saw giraffe scamper away from our approaching vehicle.

7.   It crashed into an oncoming tire-transporting truck, whose driver managed to escape and warn approaching vehicles.

8.   The accident occurred when the driver of the bus tried to avoid an approaching vehicle on a sharp bend and lost control.