In the 19th century, it ______ two or three months to cross North America. The trip ______ very rough and often dangerous.
took / was had taken / had been took / had been had taken / wasHướng dẫn giải:Trạng từ: “in the 19th century” (vào thế kỉ 19)
Công thức: S + Ved/V2
=> In the 19th century, it took two or three months to cross North America. The trip was very rough and often dangerous.
Tạm dịch: Vào thế kỷ 19, phải mất hai hoặc ba tháng để vượt qua Bắc Mỹ. Chuyến đi rất khó khăn và thường nguy hiểm.
Đáp án cần chọn là: A
