Lesson81：「あいさつの台本① 通常のあいさつ」 - Key Sentence -・Hey, how's it going, Jack? - Not too bad.・Hi. How are you? - Fine, thanks.・Hi. How are things? - Can't complain.（まぁまぁ）・Hey, what's up? - Nothing much. ＊「会話の台本」…