49. Who is responsible for maintaining the safe orderly flow of traffic? (A) The traffic administration authorities. (B) All drivers. (C) Pedestrians.

54. When going shopping, motorcyclists should (A) park in designated areas and walk to do their shopping. (B) stop by roadside and call for store clerks to deliver goods directly to them. (C) Park on the sidewalk or in front of the store they want to shop in.