Water and fresh air are very necessary for every living thing. essential

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

Water and fresh air are very necessary for every living thing.

essential

difficult

expensive

wasteful

Giải thích

Đáp án : A

Dựa theo nghĩa của từ để chọn đáp án đúng

Necessary: cần thiết ~ essential: cần thiết; difficult: khó khăn; expensive: đắt đỏ; wasteful: lãng phí