Transplanting organs such as hearts and kidneys has proved easier than transplanting muscles.
Câu hỏi
Nhận biếtTransplanting organs such as hearts and kidneys has proved easier than transplanting muscles.
Đáp án đúng: B
Lời giải của Luyện Tập 365
has proved sửa thành has been proved
has proved sửa thành has been proved
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