Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Question . We need to cut down on the emission of carbon dioxide into the atmosphere.

A. intake

B. retake

C. uptake

D. discharge

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

 These companies were accused on having released a large amount  of carbon dioxide into the atmosphere.

A. were accused

B. on

C. amount

D. into

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

These companies were accused on having released a large amount  of carbon dioxide into the atmosphere.

A. were accused   

B. on   

C. amount   

D. into

Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.

Question. These companies were accused on having released a large amount of carbon dioxide into the atmosphere.

A. These companies

B. accused on

C. having released

D. into the atmosphere

1.She is going to the teacher to have her homework_______. A correct B correcting C corrected D being corrected

2.He coughs a lot, it’s about time______smoking A stopped B had stopped C stops D is stopping

3. The government proposes to increase the duty ______ tobacco Af for B about C on D with.

4. His tooth needed______, so he went to the dentist’s to get a _______ A filling/fill B filled/filling C fill/filled B filling/filled

5.They blamed him ______ the accident A with B of C for D about

6. I can’t recall_____ that old movie, but maybe I did many years ago A having seen B to have seen C to see D having been seen

7. I suggest you ____ down on your spending A so cut B must cut C should cut D had better cut

8. Every body enjoyed ______ at the weeding party A themselves ourselves C oneself D oneselves

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

  The air above our head is becoming cleaner. A breath of fresh air has been running right round the planet for the past five years. The planet is apparently purging itself of pollution. Paul Novell of the University of Colorado, the co-author of a report on this phenomenon says, “It seems as if the planet’s own cleaning service has suddenly got a new lease of life. Suddenly, there are a lot of changes going on up there”.

  Estimates of the death toll from urban smog have been steadily rising, so the new cleaner trend could have significant consequences for life expectancy in cities as well as for the planet itself. The sudden and unexpected reversal of several decades of worsening pollution extends from the air in city streets to the remotest mid-Pacific Ocean and Antarctica.

   Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. Even carbon dioxide, the main gas behind global warning, has fallen slightly.

   There are two theories about why pollution is disappearing. First that there is less pollution to start with due to laws to cut down urban smogs and acid rain starting to have a global impact. Second, that the planet may be becoming more efficient at cleaning up.

   The main planetary clean-up agent is a chemical called hydroxyl. It is present throughout the atmosphere in tiny quantities and removes most pollutants from the air by oxidizing them. The amount of hydroxyl in the air has fallen by a quarter in 1980s. Now it may be reviving for two reasons: ironically, because the ozone hole has expanded, letting in more ultraviolet radiation into the lower atmosphere, where it manufactures hydroxyl. Then the stricter controls on vehicle exhausts in America and Europe may have cut global carbon monoxide emissions, thereby allowing more hydroxyl to clean up other pollutants.

Question: Based on information in the passage, all of the following information referring to hydroxyl is true EXCEPT __________.

A. oxidization of pollutants is carried out by hydroxyl.

B. ultraviolet radiation increases production of hydroxyl.

C. there is difficulty in destroying carbon dioxide by hydroxyl.

D. the reduction in the ozone layer is beneficial to hydroxyl.

Complete the next text with the present continuous form of the verbs in the box

Cut get increase cause change melt rise have

Power station, cars and factories produce carbon dioxide (CO2). Trees and plants change it back to oxygen, but we........................ down trees in the Amazon ranforest, so the amount of carbon dioxide in the air ................................ The carbon dioxide allows radiation from the sun to enter the atmosphere but not to leave it. This ...................................the atmosphere to heat up. Scientists think that the polar ice caps and glaciers around the world ............................... This is creating more water and the level of the sea ............................. In many parts of the world there is a possibility os floods on land near the coast. In general, the world's climate............................ This means warm areas ......................................... warter.

Các bn giúp mk vs mk tick cho. Thank you.

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

  The air above our head is becoming cleaner. A breath of fresh air has been running right round the planet for the past five years. The planet is apparently purging itself of pollution. Paul Novell of the University of Colorado, the co-author of a report on this phenomenon says, “It seems as if the planet’s own cleaning service has suddenly got a new lease of life. Suddenly, there are a lot of changes going on up there”.

  Estimates of the death toll from urban smog have been steadily rising, so the new cleaner trend could have significant consequences for life expectancy in cities as well as for the planet itself. The sudden and unexpected reversal of several decades of worsening pollution extends from the air in city streets to the remotest mid-Pacific Ocean and Antarctica.

   Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. Even carbon dioxide, the main gas behind global warning, has fallen slightly.

   There are two theories about why pollution is disappearing. First that there is less pollution to start with due to laws to cut down urban smogs and acid rain starting to have a global impact. Second, that the planet may be becoming more efficient at cleaning up.

   The main planetary clean-up agent is a chemical called hydroxyl. It is present throughout the atmosphere in tiny quantities and removes most pollutants from the air by oxidizing them. The amount of hydroxyl in the air has fallen by a quarter in 1980s. Now it may be reviving for two reasons: ironically, because the ozone hole has expanded, letting in more ultraviolet radiation into the lower atmosphere, where it manufactures hydroxyl. Then the stricter controls on vehicle exhausts in America and Europe may have cut global carbon monoxide emissions, thereby allowing more hydroxyl to clean up other pollutants.

Question: The word “it” in paragraph 5 refers to ______.

A. the ozone hole

B. clean-up agent

C. acid rain

D. urban smog