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

When driving on a long downhill road, which is the best way to control driving speed?
The drivers, loaders and supercargoes responsible for dangerous chemicals transportation should all full understand the chemical characteristics, potential risks, features of the packaging containers and emergency measures for any unexpected accidents.
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 an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
When evading an emergency, except for being calm what principle should be held by drivers?
What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?
When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
When a motor vehicle stops in snow, which lamp should be turned on?
The wrong method to rescue a poisoned person in a traffic accident is to ______.
What is the meaning of this sign?
When approaching another vehicle at night, why should the driver alternate between high-and-low-beam at a distance more than 150 meters?
What is the meaning of this sign?
What is the meaning of this sign?
What is the meaning of this sign?
When rescuing a wounded person in coma, it is necessary to take warm-keeping measures to prevent heat loss.