Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 năm 2023 có đáp án (Đề 4)

Military is _________ in this country. Every man who reaches the age of 18 has to serve in the army for two years. A. compulsory B. optional C. illegal D. unnecessary

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Military is _________ in this country. Every man who reaches the age of 18 has to serve in the army for two years.

compulsory

optional

illegal

unnecessary

Giải thích

Chọn A