Christopher Columbus _________ America more than 500 years ago.
Đáp án A
Kiến thức: Thì trong tiếng anh
Giải thích:
Trong câu có dùng trạng ngữ chỉ thời gian “500 years ago”, đây là một thời điểm trong quá khứ, ta dùng thì quá khứ đơn.
Tạm dịch: Christopher Columbus đã phát hiện ra nước Mỹ cách đây hơn 500 năm.
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