We ought to keep these proposals secret from the chairman for the time being.
Giải thích:
secret (a): bí mật
revealed (a): được tiết lộ frequented (a): thường xuyên
accessible (a): có thể tiếp cận lively (a): sống động
=> secret >< revealed
Tạm dịch: Chúng tôi bây giờ phải giữ bí mật về những đề xuất này với chủ tịch.
Đáp án: A
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