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 is the meaning of this sign?
What is the meaning of this sign?
What is the meaning of this sign?
When a wounded person is under the wheel or cargo, the wrong method is to pull the limbs of the wounded.
How to ensure safe driving at night?
What influence does smoking have upon driving?
What is the meaning of this sign?
Once inflammable gas causes a fire disaster, it should be put out with water in good time.
The first-aid measure to rescue a poisoned person is to _______.
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.
When following other vehicles on a foggy day, what should the driver do?
When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
When driving in thick or extremely thick fog, what should the driver do due to the low visibility in such weather?
What is the most frequent problem for driving on a muddy road?
When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
What is the meaning of this sign?