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
2026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 2026 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
- When encountering such a situation, the vehicles should cut speed or stop to yield as approaching each other.
- What should the driver do if he encounters this situation at the intersection when driving straight?
- When encountering this situation at the gate of a school, the driver should prepare to stop.
- Motor vehicle drivers may reverse at an intersection.
- As shown in the flash, when overtaking a vehicle in front, the driver should make the horizontal distance as large as possible and may cross the solid line if necessary.
- The driver should yield to other non-motor vehicles when the motor vehicle turns right at this Intersection.
- As shown in the flash, what should the driver do when the motor vehicle encounters this situation?
- When a motor vehicle encounters this situation at a crosswalk, the driver must slow down and pass slowly.
- When a motor vehicle turns left at this intersection the driver should change to the left lane in advance by the guide arrow.
- Before setting off, it is necessary to check the driving cabin, engine cabin, external and tires of the motor vehicle.
- When temporarily parking on a raining day, what kind of lamp should the driver turn on?
- What does this sign on the fly-over junction indicate?
- A motor vehicle should slow down and stop at this level crossing.
- The sign on the right warns of an abrupt slope section ahead.
- Mr. Li drove a large bus with 21 passengers (capacity 35 people). He found the braking system was abnormal on the way but failed to repair it. When running on the Shuangdao Haiwan Bridge at a speed of 50 kilometers per hour (speed limit 40 km/h), the bus fell into the sea due to a braking system failure, killing 13 people and injuring 8. What is the main illegal act committed by Mr. Li?
- What should the driver do if he encounters pedestrians in this situation at an intersection?