Bộ 20 đề ôn thi vào Chuyên Anh năm 2023 có đáp án (Đề 2)
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Absolute secrecy was crucial to the success of the mission.

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Absolute secrecy was crucial to the success of the mission.
→ Without ............................................................................................................

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Giải thích

Without absolute secrecy this mission would not have succeeded/ been successful/ been a success/ would have failed.