She was a devoted nurse, always very to the needs of her elderly patients.

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
She was a devoted nurse, always very to the needs of her elderly patients.

observant

attentive

careful

delicate

Giải thích

Câu này hỏi về từ vựng. Đáp án là B. be attentive to someone/something: ân cần với. Nghĩa các từ còn lại: observant ( + of ) : tuân theo ..careful ( + of ): giữ gìn ... ; delicate: thanh nhã