你应该尽快把这封信送到客服部。You should ______ this letter to the ___________ as soon as possible.
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出于安全考虑，所有的通话都会被录音。All the calls will be _____________________security.
几乎所有跨国公司都提供一流的服务。____________ service can be found in almost every __________ company.
必须进行细致的市场研究。A careful study of the _______ is ________.
上个月，秘书被经理解雇了。___________,the manager _______ the secretary.
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