Everyone involved in this matter should make a _________ not to leak the secret.

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问题 Everyone involved in this matter should make a _________ not to leak the secret.

选项 A、pledge
B、warranty
C、assurance
D、guarantee

答案A

解析 惯用搭配题。make a pledge to do sth.为惯用表达,意为“保证做某事”。[A]pledge“保证,誓言”。[B]warranty“担保,保证”,常指法律上的对商品质量和售后服务的担保;[C]assurance“保证”,常用 give/seek/receive/assurance;[D]guarantee“保证,保证书”,不用于本题干句中的结构。
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