Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in the following question.

According to the futurist Ray Kurzweil, humans could have tiny computerized machines or nanobots invent thanks to future medical advances.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in the following question.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in the following question.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in the following question.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in the following question.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in the following question.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in the following question.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question.

By the time you finish cooking they ____ their homework.