Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Engineers are still trying to come up with a commercially viable replacement for internal-combustion engines.
A. feasible
B. accessible
C. desirable
D. derivable
Đáp án : A
Viable= feasible = có thể làm được, accessible= có thể tiếp cận, desirable= bãi bỏ, derivable= có thể suy luận.