Itis_________tohelpotherswhen

发布时间:2020-07-28 15:19:03

It is _________ to help others when they are in hot water.A.good mannersB.a good mannerC.a pityD.no use

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A解析good manners为“有礼貌”,“无礼貌”为bad manners, manner只用复数形式。
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