Practice question A DO NOT ENTER sign means: You may enter only if no traffic is comingYou are not allowed to enter where the sign is postedThe lane is ending soonTraffic must keep left Answer: B — You are not allowed to enter where the sign is posted The correct answer is shown above. Try the full quiz for additional practice. Practice more: Michigan Road Signs Practice Practice Questions - Michigan Driver License Knowledge Test Signs, Signals, and Pavement Markings Practice Exam →