Choose the best answer:
Not until Kentucky's Mammoth Cave had been completely explored in 1972 ______.

Câu hỏi liên quan

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

  29. He has been caught in the rain, and has been wet __________.

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

  Câu 13. It was reported that three top athletes have been ________from the championship after positive drug tests.

• Find one error in each of the following sentences (A, B, C or D)

  It is much easier for a foreigner to become an American citizen if he has a close relative whoever is already an American.

ZUNIA12

• Choose the correct answer

  A letter of _______ is sometimes really necessary for you in a job interview.

• Choose the best answer among A, B, C or D that best completes each sentence:  The GMAT test …….  to students who are interested in a career in business.

• Welcome to Patagonia Treks! By .............. our company, you are guaranteed to get the most out of your experience in the wild lands of Patagonia.

• Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

  Câu 21. The best hope of avoiding a down-market tabloid TV future lies in the pressure currently being put on the networks to clean up their act.

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

  12. "Let's all be very careful what we say at the meeting tomorrow. I don't want anyone putting their ………. in their mouth."

• Choose the best answer to complete the blank in the following sentence.

  AIDS is a/an ___________disease.

• English     _____________         in many parts of the world.

• He couldn’t ride his bike  .........  there’s no air in one of the tyres.

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

  Câu 15. Could you give me a rough_______ of what the decoration job might cost?

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

  Câu 17. She __________ her hands in horror at his suggestion that she should marry him.

• Choose the best answer:
  My mother let me ______________ after 9 PM.

• The director ............... the new environmental safety committee, Mr. Tim Chamberlain, has studied both economics and ecological science at North State University.

• David was deported on account of his expired visa. He ______ it renewed.

• They couldn’t wait to go for a swim in the crystal _____ water or the small bay.

   

• In our school library, there are several large tables__________ we can sit to read books.

   

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

  Câu 17. Running can make your heart work __________ harder than just walking.

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

  Câu 10. Some young artists don't have the chance _________ to the music industry and most importantly there is no platform for them to showcase their real talents.