Đọc kỹ đoạn văn sau rồi chọn phương án (A, B, C hoặc D) để hoàn thành các câu từ 26 đến 30.
Air pollution happens when wastes dirty the air. People reduce most of the wastes that cause air pollution. Such wastes can be in the form of gases or particles of solid or liquid matter. These substances result chiefly from burning fuel to power motor vehicles and to heating buildings. Industrial processes and the burning of garbage also contribute to air pollution. Besides, there are other substances that naturally exist in the air. They include dust, pollen, soil particles, and naturally occurring gases.
The rapid growth of population and industry and the increasing use of automobiles and airplanes have made air pollutionn a serious problem. The air we breathe has become so filled with pollutants that can cause health problems. It also harms plants, animals, building materials, and fabrics
What does the word “it” in the last sentence refer to?
A.the polluted air
B.the burning material
C.the health problems
D.the plant and animal

Đọc kỹ đoạn văn sau rồi chọn phương án (A, B, C hoặc D) để hoàn thành các câu từ 26 đến 30.
Air pollution happens when wastes dirty the air. People reduce most of the wastes that cause air pollution. Such wastes can be in the form of gases or particles of solid or liquid matter. These substances result chiefly from burning fuel to power motor vehicles and to heating buildings. Industrial processes and the burning of garbage also contribute to air pollution. Besides, there are other substances that naturally exist in the air. They include dust, pollen, soil particles, and naturally occurring gases.
The rapid growth of population and industry and the increasing use of automobiles and airplanes have made air pollutionn a serious problem. The air we breathe has become so filled with pollutants that can cause health problems. It also harms plants, animals, building materials, and fabrics
When does air pollution happens?
A.when wastes are in the form of gases
B.when people produce wastes
C.when people reduce wastes
D.when wastes dirty the air

Đọc kỹ đoạn văn sau rồi chọn phương án (A, B, C hoặc D) để hoàn thành các câu từ 26 đến 30.
Air pollution happens when wastes dirty the air. People reduce most of the wastes that cause air pollution. Such wastes can be in the form of gases or particles of solid or liquid matter. These substances result chiefly from burning fuel to power motor vehicles and to heating buildings. Industrial processes and the burning of garbage also contribute to air pollution. Besides, there are other substances that naturally exist in the air. They include dust, pollen, soil particles, and naturally occurring gases.
The rapid growth of population and industry and the increasing use of automobiles and airplanes have made air pollutionn a serious problem. The air we breathe has become so filled with pollutants that can cause health problems. It also harms plants, animals, building materials, and fabrics
Does air pollution cause health problems?
A.Yes, it is
B.Yes, it does
C.No, it doesn’t
D.No, it isn’t

You look exhausted. You __________ in the garden all day.
A.can’t have worked hard
B.couldn’t have worked hard
C.should have worked hard
D.must have worked hard

Nobody knew that Uncle Ben was coming to see us. He arrived_________.
A.unexpecting
B.unexpected
C.unexpectedly
D.expectantly

Which of the following statements about leadership can be inferred from paragraph 2?
A.A person who is an effective leader of a particular group may not be an effective leader in another group.
B.Few people succeed in sharing a leadership role with another person.
C.A person can best learn how to be an effective leader by studying research on leadership.
D.Most people desire to be leaders but can produce little evidence of their qualifications.

The passage indicates that instrumental leaders generally focus on __________ .
A.achieving a goal
B.identifying new leaders
C.sharing responsibility with group members
D.ensuring harmonious relationships

Which of the following is TRUE according to the passage?
A.The best schools teach a variety of subjects
B.Students benifit from schooling, which require long hours and homework
C.Education and schooling are quite different exprience.
D.The more years students go to school, the bitter their education is.

What is the main idea of this passage?
A.Searching for wrecks is much easier with new technologies like side-scan sohar.
B.Maritime archaeologists are connerned about the unregulated searching of wrecks.
C.The search of the RMS Republic failed to produce the hoped-for coins.
D.The popularity of treasure seeking has spurred a debate between preservationists and salvages.

The passage is organized by ____________ .
A.contasting the meanings of two related words
B.listing and discussing several education problems
C.narrating a story about excellent teachers
D.giving examples of different kinds of schools.