Greeting Friends <img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' alt='Emotion: smile'/><br/><br/><b>I have to go for a interview</b>& I'm little confused in one sentence.<br/><br/>A) I have worked for Tech M.<br/><br/>B) I worked for Tech M for 3 years.<br/><br/>C) I had worked for Tech M for 3 years.<br/><br/>Actually I joined Tech M in 2005 and left it in 2008. And I want to say this think in my self introduction.<br/><br/>I look forward to your help.