8 . If a service vehicle, such as a tow truck or recycling truck, is stopped on the side of the road ahead while its signal lights are flashing, you should:
Pull over and assist the driver.
Move into a lane that is not adjacent to the stopped vehicle.
21 . There are two traffic lanes moving in your direction. You are driving in the left lane and many vehicles are passing you on the right. If the driver behind you wishes to drive faster, you should:
Stay in your lane so you don't impede the flow of traffic.
Drive onto the left shoulder to let the other vehicles pass.