Choose the best answer:
__________ is the contamination of lakes, rivers, oceans, or groundwater, usually by human activities.

Câu hỏi liên quan

• Choose the best answer:

  ....................... English     ........... all over the world?

• The_______ of living here, of course, is that it is expensive.

• She’s certainly a ................. writer, she has written quite a few bools this year.

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• Choose the sentence which has the closest meaning to the original one.

  He can not afford a new computer.

• I'm not the man to give you... adviceA

• Choose the correct answer in each sentence.

  Crescent is now producing packaging with a high speed machine capable of producing 20 million units a year, and so starting to realize the

  ------- potential of the firm’s innovation.

• The temperature ................. takes place varies widely from material to material.

• ................... high school, Nam attended a university in the city centre.

• Choose the best answer:

  The people ....... live next door keep having all-night parties.

• All the guests got dressed in _____ costume.

• Choose the correct answer in each sentence.

  Please be patient as the IT department works ------- service to your business application.

• The thief returned the old lady’s money because he had a guilty _____.

   

• Choose the best answer:
  Students are expected to always adhere to school regulations.

• Choose the correct answer in each sentence.

  The government ____________   all businesses to ensure their tax returns are completed on time.

• Choose the best answer:

  In Italy in 1981, a ........... lifted a baby sleeping in the baby carriage into the air and put it down safely 100 meters away!

• There are only _____ few mistakes in your composition. Don't make _____ same ones any more.

• Linda refused     in the musical performance because she was sick.

• If we don’t protect and preserve endangered species, there .................. a loss of biodiversity.

• Choose the best answer among A, B, C or D that best completes each sentence:  If you had been more careful, you would _____ the work.

• Special help groups have been set up to of sufferers help and support. IAS is similar to  ______ problems like gambling, smoking and drinking : addicts have dreams about Internet; they need to use it first thing in the morning; they lie to their partners about how much time they spend online; they wish they could cut down, but are unable to do so .