Engineers are still trying to come up with a commercially viable replacement for internal-combustion engines.

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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.

feasible

accessible

desirable

derivable

Giải thích

Đáp án : A

Viable= feasible = có thể làm được, accessible= có thể tiếp cận, desirable= bãi bỏ, derivable= có thể suy luận.