我写信是关于2月12日星期一《每日新闻》上广告的上述工作。

I am writing ___in ___connection ___with the above job advertised in The Daily Press on Monday 12th February.

一名男子因与上月的谋杀案有关而被逮捕。

A man has been arrested ___in ___connection ___with last month's murder.

亲爱的布朗夫人，我写信是关于为您丈夫布朗先生举办的惊喜生日派对。

Dear Mrs Brown, I am writing ___in ___connection ___with a surprise birthday party for your husband, Mr Brown.