... điểm) Em hãy chọn một phương án A, B, C, hoặc D tương Đề thi chon học sinh giỏi môn Tiếng Anh lớp 12 section a: Grammar & Vocabulary (40 điểm) Part I. (25 điểm) /Hãy chọn một đáp ... we/ buying/ countryside/ thinking/ A. We are thinking about buying in the countryside a house. B. We are thinking about buying a house in the countryside. C. We are thinking buying a house ... of human history, people used to exchange things they had (44) of for things that they were in (45) of. For example, they might offer food for tools. This (46) of exchange, which is known...