Choose the best answer:
 ___________ occurs when the atmosphere contains gases, dust, or fumes in.

Câu hỏi liên quan

• Choose the best answer:
  She has suffered ............ her heart attack.

• ................... of the proposed plans by the chamber of commerce involves an annual agricultural exhibition.

• She is the finest woman__________ ever lived.

   

ZUNIA12

• Mark the letter A, B, C or D to indicate the correct answer to each of the following question:

  29. After I arrive in Hanoi, I'll go straight to my hotel and _______

• Choose the best answer:
  I prefer to pay for everything in ……….. so I always know how much money I have.

• Choose the best answer:
  Bob, would you like to go .......... the zoo ........... us on Sunday.
  - I'd love to, but I am afraid not because I have a lot of exercises to do.

• Choose the best answer:
  GCSE are not compulsory, but they are the most common qualifications taken by students.

• This is the only student .... this exercise.

• Choose the best answer:
  John decided to ……….. his subcription to the magazine.

• Ann pretended  ........... me as he passed me in the street.

• Choose the best answer.

  John, who is my friend, has studied English for ten years. => John, ________ , has studied English for ten years.

• Customers with concems about the safety of the product are advised to call the .......... as soon as possible.

• Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

  Câu 18. If I were you, I _________ products made from recycled materials.

• She has very high............for her new job, although she has only been there for a week.

• Choose the best answer:
   __________ occurs because there are too many loud sounds.

• Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions.

  Câu 44. It's such a pity my mother can't attend my birthday party.

• Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

  Câu 9. Several passengers received minor injuries when the train unexpectedly came to a ______.

• These animals are quite vulnerable when living near the industrial zone. 

• Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

  Câu 10. One of the main drawbacks of office work is that people can be easily inflicted _________________ back pains.

• Choose the best answer:
  Listen to .......... teacher, please. Don't talk in class.