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

Question 20: Computers are becoming much more sophisticated machines.

    A. expensive                      B. complicated                  C. convenient                    D. difficult to operate

Question 21: The student was asked to account for her absence from her last lesson.

    A. arrange                          B. complain                       C. exchange                       D. explain

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