Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
In recent years there have (31)_________many articles on air polution in newspapers and magazines. Scientists all over the world have warned that our atmosphere is becoming more and more contaminated, and that Man, through his carelessness, may run (32)_________of pure air to breathe.
Automobiles and industries mainly account (33)_________air pollution in most cities. They pour into the air such gases as carbon monoxide, sulphur and nitrogen oxides, which are very harmful (34)_________humans. Worrse still, these gases, a series of chemical changes, turn into toxic acids. They fall down in "acid rains", raising the acidity in the air, soil and water to dangerous levels and affecting not only tress but also fish and other wildlife. Many industrial countries in Europe and North America have suffered bad effects (35) ________ those "rains”.
(34).................
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Lời giải:
Báo sai- harm to somebody/something: có hại cho ai/có hại tới cái gì
E.g: The huge fall in exports has done a great deal of harm to the economy.
⇨ Đáp án C (Chúng đổ vào các không khí các loại khí như C02, lưu huỳnh và nitơ oxit, những thứ mà rất có hại cho con người.)