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?

2025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 2025 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 is the meaning of this sign?
When rescuing a person sustaining full-body burns the rescue personnel may spray cool water to his body to put out the fire.
What is the meaning of this sign?
What needs attention when a motor vehicle drives on a road covered with ice and snow?
The wrong method to rescue a poisoned person in a traffic accident is to ______.
Which of the following method is correct to rescue an unconscious person?
When removing a wounded person suffering spinal fracture, the rescuer should never help the wounded person to walk. He may be carried away with a soft stretcher.
Which of the following measures is correct for rescuing a person sustaining full-body burns?
When a motor vehicle temporarily stops in fog, which lamp should be turned on?
When driving on a long downhill road, which is the best way to control driving speed?
What is the meaning of this sign?
When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.
The article that cannot be used to stop bleeding by dressing is _________.
When a wounded person suffering bone fracture in the thigh, shank and spine, it is necessary to keep the fracture in position and refrain to move the wounded person.
What is the meaning of this sign?
What is the meaning of this sign?