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Everyone wants to reduce pollution. But the pollution...

Câu hỏi: Read the following passage and mark the letter A, B, C or Don your answer sheet to indicate the correct word for each of the blanks from 33 to 37.
Everyone wants to reduce pollution. But the pollution (33) ____________is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. (34) ____________, exhaust from automobiles causes a large percentage of air pollution. But the automobile provides transportation for millions of people. Factories discharge much of the material that pollutes the air and water but factories give (35) ____________to a large number of people.
Thus, to end or greatly reduce pollution immediately, people would have to (36)____________using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduced in several ways. Scientists and engineers can work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws (37) ____________require businesses and traffic to stop, or to cut down on certain polluting activities.
The word or phrase which best fits the gap (35) is...
A. employed
B. employment
C. unemployed
D. unemployment
A. employed (a): có việc làm
B. employment (n): công việc
C. unemployed (a): thất nghiệp
D. unemployment (n): sự thất nghiệp
Câu hỏi từ vựng. Căn cứ vào nghĩa để chọn đáp án B - employment.
Trích bài: Factories discharge much of the material that pollutes the air and water but factories give employment to a large number of people.
Tạm dịch: Các nhà máy thải ra phần lớn các chất gây ô nhiễm không khí và nước, nhưng các nhà máy lại cung cấp việc làm cho nhiều người.
Đáp án B.