When the weather is cold, it is not very much fun to (1) ______a bus. People have to stand at a bus-stop for minutes or even hours. They talk about the bus and (2) _______about the weather. Most of them feel cold. Some have to drink coffee to stay warm. Traveling by buses (3) _______ pollution, but people often would rather drive their cars. Many people are not used to the bus schedules, and they do not like to wait. On the other hand, many people have been (4) ______the bus every day for many years. They are used to it. They say the bus has been coming on time every day, and they have never been late for work. In (5) _______, they do not need a parking place in all that time. Buses are very convenient when you are used to them.
Điền vào số 3
A. tell
B. complain
C. comment
D. judge
Đáp án B
Giải thích: Cấu trúc: complain about something: than phiền về cái gì