1. Slow down and keep to the right.
  2. He should make a warning honk, continue driving in normal speed, glance at the mirrors and then drive faster to quickly cross the curve.
  3. Approaching a curve in high speed is dangerous on a rough road only.
  4. In the absence of a road sign warning about an incoming curve, there is no need to slow down. He should continue driving at normal speed.
Picture for question 929