People say that Columbus discovered America

-> Columbus is said to have discovered America.

America is said to have been discovered by Columbus.

People say that Columbus discovered America

-> Columbus is said to discover America

America is said to be discovered by Columbus

People say that Columbus discovered America

-> Columbus is said to have discovered America.

America is said to have been discovered by Columbus.

Đáp án D

Đáp án: was discovered

1. was discovered

Was discovered

1.      America was discovered by Christopher Columbus. 

Đáp án: B

Lùi thì QKĐ sang QKHT

Dịch: Giáo viên cho biết Columbus đã phát hiện ra nước Mỹ vào năm 1942.

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.

discovered

Columbus discovered (discover) America more than 400 years ago.

Columbus discovered (discover) America more than 400 years ago.

- Topic : ________Christopher Columbus, a American Hero________________
Most Americans were taught in school that Christopher Columbus , an Italian navigator , '' discovered'' America in 1492 . Traditionally , Columbus has been a hero to Americans . Statues of him are everywhere in the morden United States , and his name appears all over the map of the U.S Cities and streets are named after Columbus . America itself is sometimes called '' columbia '' in his honor