A. say to root
B. say to have rooted
C. are said to root
D. are said to have rooted
Giải bởi Vietjack
Đáp án D.
Cấu trúc: Câu bị động đặc biệt:
To be said/ told/ reported/ thought/ believed to V (nếu động từ cùng thì với to be) hoặc to have Vpp (động từ lùi thì so với to be).
Trong câu này,“các tác phẩm tiền chiến” là việc trong quá khứ, động từ tường thuật is said ở hiện tại nên cần dùng To have Vpp - To have fought.
Tạm dịch: Khoa học máy tính hiện đại và trí tuệ nhân tạo được cho rằng là bắt nguồn từ những tác phẩm tiền chiến của Goedel, Turing, and Zuse.
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