giai thich ho em voi People believe that the Great Pyramid was built over a 20-year period. A. The Great Pyramid is believed to have been built over a

giai thich ho em voi
People believe that the Great Pyramid was built over a 20-year period.
A. The Great Pyramid is believed to have been built over a 20-year period.
B. It is believed that the Great Pyramid was built over a 20-year period.
C. The Great Pyramid is believed to be built over a 20-year period.
D. A and B

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  1. => D. A and B

    – Giải thích: Câu bị động không ngôi: 

    + Cách 1: It+ be+ PII+ that+ S+ V…..

    + Cách 2: S+ be+ PII+ to V/ have PII..

    => Từ công thức-> Đáp án A đúng.

    – Sang cách thứ 2, vế trước và sau khác thì nên ta dùng to have PII, mà đây là trường hợp bị động-> dùng to have been PII.

    => B đúng, C sai.

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