I am new to German and have been using various sites/tools in my quest to become fluent (still a ways off). When working through some word order problems I was asked to translate "In my opinion, Tennis is great." I answered with "In meine Meinung ist Tennis super." I was told the correct answer was "Meiner Meinung nach ist Tennis super." My answer translates correctly using Google and shows the correct grammar using LanguageTool. Which is better and why?