Scientists and engineers have invented filters and other methods of removing pollutants from industrial wastes.

Câu hỏi liên quan

• Choose the best answer:
  By the time we get to the conference about wildlife protection, the opening speech __________.

• Choose the correct answer in each sentence.

  As a  _____________  for making contracts with a lot of new clients, Mr. Skinner was given additional vacation days.

• Some one has forgotten ________umbrella.

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• Choose the correct answer in each sentence.

  Ms. Nguyen is assigned to oversee ------- only an television advertising campaigns.

• Choose the best answer among A, B, C or D that best completes each sentence: We eventually found the answer by a …… of elimination.

• Nearly 1,000 ........................ tires were diverted from landfill disposal and recycled into rubber to resurface the school track

• I could not eat _______ I was very hungry.

   

• Choose the best answer:

  The old theater is in need of complete ............

• Choose the best answer among A, B, C or D that best completes each sentence: A large number of churches…........ ruin after the war.

• Choose the correct answer in each sentence.

  The grocery store chain Refresh Foods has  _________  in organic products since it opened in 2001.

• The problem of_______ in big cities, which stems from uncontrolled migration from rural areas.

• Choose the correct answer in each sentence.

  The semi-finalists for the community art contest will be  ________________  by a panel of judges tomorrow.

• Choose the best answer among A, B, C or D that best completes each sentence: She doesn’t want to ……..... a big emotional  commitment to Steve at the moment.

• I badly _____ my ankle when I fell to the ground last night.

• Choose the correct answer in each sentence.

  Due to congestion on the roads, an increasing number of manufacturers ---------transport their goods by train.

• We were quite impressed by the _______ students who came up with  the  answe  to our question almost instantly.

• While I  ............ T.V last night, a mouse ran across the floor.

• Choose the correct answer in each sentence.

  -------- of an error on the order form, some of the construction materials were never shipped.

• Choose the best answer:
  I have……………….English every day.

• In my family, my father always takes charge of doing the _____ lifting.