Practice question What do two solid yellow lines prohibit? Crossing them to pass another vehicleTurning left when it is safeStaying to the right of the linesDriving on a two-way road Answer: A — Crossing them to pass another vehicle The correct answer is shown above. Try the full quiz for additional practice. Practice more: Massachusetts Road Signs Practice Practice Questions - Massachusetts RMV Road Signs, Signals, and Pavement Markings Practice Exam →