Monitoring is necessary in the case of small children, but this is excessive, not to mention exhausting, when you're dealing with school - aged children. (treehugger.com)
In person, meetings might also be necessary in cases where the client prefers them or the nature of the topic requires a face - to - face meeting. (realestatece.com)
The single - subject focus was necessary in this case because the focus was on improving scores on a particular standardized test. (mspkmd.net)