21. One day, Mr. Yang drove a large bus with 57 passengers (bus capacity 55 people) from 7 pm to 1 am the following morning. At the spot of 3008 kilometers mark by 110 meters on the No. 050 National Road in Jin Chengjiang District, the bus had a malignant traffic accident caused by front left tire burst, killing 12 people and injuring 22. What is the main illegal act committed by Mr. Yang?
A. Fatigued driving
B. Carrying more passengers than permitted
C. Speeding
D. Misoperation
Answer：AB
2025年科目四英文版题库共700题，你可以免费查看前200题，完整版题库请添加微信购买：
The English version of the 2025 subject 4 question bank has a total of 700 questions. You can view the top 200 questions for free. Please add WeChat to purchase the complete version of the question bank.
Subject 4 test questions
- What should the driver do in this situation?
- Motor vehicles should accelerate when driving into an intersection with this traffic signal.
- After setting off from a roadside, motor vehicle drivers should watch both sides of the road, turn left and drive into the normal lane slowly.
- Which lamp should be used when motor vehicles pass through an intersection at night where there is no traffic light signal?
- Under such circumstances, what should be done by a motor vehicle driver in order to yield out of courtesy?
- When encountering such a situation, the motor vehicle driver should change to the left lane rapidly.
- Which one of the following is a safe way for motor vehicles to converge into an intersection marked with this sign?
- At this moment, the driver may speed up and pass the intersection rapidly.
- What is the meaning of the sign on the right?
- As shown in the flash, what should the motor vehicle driver do when encountering this situation?
- Motor vehicles are not allowed to stop in this area for a long time.
- As shown in this flash, what should the motor vehicle driver do when encounters this situation?
- The braking distance will be shortened greatly when the motor vehicle is equipped with ABS brakes.
- When a motor vehicle stops in snow, which lamp should be turned on?
- What should the driver do if he encounters pedestrians in this situation at an intersection?
- The sign on the right warns of an abrupt slope section ahead.