123. Which of the following is a bad habit when changing lanes?

A. Turning on the indicator in advance

B. Observing closely before changing a lane

C. Change lanes at will

D. Not obstructing the passing of other normally moving vehicles

Answer：C

Previous question: 122. When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?

Next question: 124. What influence does smoking have upon driving?

2026年摩托车科目四英文版题库共345题，你可以免费查看前50题，完整版题库请添加微信购买：

The English version of the 2026 motorcycle subject 4 question bank has a total of 345 questions. You can view the top 50 questions for free. Please add WeChat to purchase the complete version of the question bank.

科目四试题

What needs attention when a motor vehicle drives on a road covered with ice and snow?
Which lamp should be used when motor vehicles pass hrough an intersection at night where there is no traffic light signal?
When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
What is the meaning of this sign?
In emergencies, people¡¯s life safety should always be put in the first place.
When a motor vehicle encounters a burning phenomenon, it should leave the vehicle quickly so as not to cause injury or asphyxia to the respiratory tract.
When a gas tanker is leaking heavily, which of the following measures is wrong?
When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
When encountering a vehicle in front ascending on a mountainous road covered with ice and snow, what should the motor vehicle driver do?
When discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.
What is the meaning of this sign?
When there is no bandage for rescuing a wounded person, which of the following measures is wrong?
Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
Which of the following measures is incorrect when a motor vehicle stops?
When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.
What is the meaning of this sign?