Câu hỏi:
19/03/2020 1,497Don't be concerned about your mother's illness; she'll recover soon.
Sách mới 2k7: 30 đề đánh giá năng lực DHQG Hà Nội, Tp. Hồ Chí Minh, BKHN 2025 mới nhất (600 trang - chỉ từ 140k).
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Trả lời:
Đáp án B.
be concerned about = be worried about (a) lo lắng về cái gì
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