In most countries, compulsory military service doesn’t apply to women

Câu hỏi :

Mark the letter A, B, C or D on your answer sheet to indicate the word of phrase that is OPPOSITE in meaning to the underlined part in each of the following question.

A. mandatory

B. essential

C. optional

D. required

* Đáp án

C

* Hướng dẫn giải

Đáp án C

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