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
- Under such circumstances, what should be done by the motor vehicle driver?
- After setting off from the roadside, motor vehicle drivers should speed up as soon as possible and make a sharp left-turn in order to drive into the normal lane.
- The sign on the right warns of right-hand S-shaped bend ahead.
- When a motor vehicle encounters this situation at a crosswalk, the driver must slow down and pass slowly.
- When encountering a situation like changing to a left lane, motor vehicle drivers should yield.
- In this situation, motor vehicles are permitted to stop temporarily at bus stations.
- Mr. Ran drove his car from 6am until 11 am without rest, falling down a steep 8.5-meter ridge at one side of a highway 1 km from Xunan Road in Xuahan County, killing 13 people and injuring 9. Which of the following law-breaking acts did Mr Ran commit?
- When driving, besides paying attention to keeping a safe distance from the vehicle in front, drivers should also be prudent when braking so as to avoid a rear-end collision caused by a vehicle behind.
- Which of the following is a safe way for motor vehicles to pass the intersection marked with this sign?
- When driving into the traffic flow on a main road from a relief road, drivers should speed up.
- Before making a U-turn at the intersection ahead, motor vehicle drivers should drive to the lane for turning left and going straight.
- At this intersection, motor vehicle drivers may directly make a U-turn along the U-turn turning lane.
- Under such circumstances, what should be done by motor vehicle drivers in order to maintain safe driving?
- What should motor vehicle drivers do under such circumstances at night?
- What should the driver do in this situation?
- When passing an intersection, vehicle motor drivers are not allowed to overtake.