Choose the best answer:
Scientists and engineers have invented devices to remove ______ from industrial wastes.

Câu hỏi liên quan

• He is in a much _______ mood than usual.

• The local economy which once used to be in crisis now depends to a great extent on menial jobs provided by the recent development of ecotourism.

• There are many different ways of comparing the economy of one nation with those of another.

ZUNIA12

• Choose the word(s) CLOSEST in meaning to the underlined word(s): Our government has done a lot to eliminate gender inequality.

• In the 1800’s store owners sold everything from a needle to a plow, trust everyone, and never took inventory.

• Chia động từ trong ngoặc cho phù hợp để hoàn thành các câu sau.

  If he came here today, we (feel) _______________ happier.

• Choose the best option to complete the following sentences:

  He was born ___________ 1987. 

• When radio programs became popular, approximately around 1925, many people stopped attending movies.

• Identify the error in each sentence: (A) Fifty dollars (B) seem a (C) reasonable price to pay (D) for that

• In the whole I agree with what you’re saving, but I’m not sure about your last point

• Choose the letter A, B, C or D to complete the sentences

  Hue was listed as a world cultural Heritage by UNESCO ___________ 1993.

• Choose the best option to complete the following sentences:

  I (already/ see)________________ pizza but I (not eat)________________ it yet.

• New York City surpassed the order Atlantic seaports in partly because it developed the best transportation links with the interior of the country.

• Mark the letter A, B, C, or D to indicate the correct response to each of the following exchanges

  Mr. Bean: “How has tourism changed over the past few decades?”

        Hoai Khanh: “__________________”

•  If you don't keep silent, you ________wake the baby up.

• None two butterflies have exactly the same design on their wings

• Despite its smaller size, the Indian Ocean is as deep the Atlantic Ocean.

• It’s been brought to my attention that there has been a number of thefts from the office

• Some jellyfish make daily journeys from deep water to the surface and back, while others migrate horizontal.

• Had we known the traffic would be so bad, we did not drive back from work so early