1. Complete the following text by changing the verbs in parentheses into the Simple Past tense
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I want to tell you about Skype, an amazing invention I discovered when I first traveled abroad. It is a free software application that allows you to communicate with people by voice, video and instant messaging online. Its original name was Sky Peer-to-Peer. Janus Früs and Niklas Zennström created Skype in Estonia. They invented it in 2003. Years later, they also developed a very popular Internet TV service called Joost. I think Früs and Zennström definitely changed the nature of peer-to-peer communication and content distribution around the world. Hope this help you.
Hope this help you.