Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 33 to 42.

Everyone wants to reduce pollution. But the pollution problem is (33)______ complicated as it is serious. It is complicated (34)______ much pollution is caused by things that benefit people. (35)______, exhaust from automobiles causes a large percentage of air pollution. But the automobile (36)______ transportation for millions of people. Factories discharge much (37)______ the material that pollutes the air and water, but factories give employment to a large number of people.

Thus, to end (38)_______ greatly reduce pollution immediately, people would have to (39)______ using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be (40)______ reduced in several ways. Scientists and engineers can work to find ways to lessen the (41)______ of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws that (42)______ businesses and traffic to stop, or to cut down on certain polluting activities.

Điền vào ô số 41

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

It gets _____  to understand what the professor has explained.

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of  the following questions.

She was unhappy that she lost contact with a lot of her old friends when she went abroad to study. 

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

The last person _____ the room must turn off the lights.

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.

George hasn’t completed the assignment yet, and Mary hasn’t too.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

_____ he is old, he wants to travel around the world.

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is   CLOSEST in meaning to the underlined part in each of  the following questions

The crew divided the life preservers among the twenty terrified passengers as the ship began to sink.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

It is hard to get him _____; he is such an aggressive man