I had a very nice surprise this evening . A few minutes after dinner , there was a knock at the front door . To my surprise , it was Johnny Smith . “ Hello , Johnny !” I said . “ What are you doing here ?” Johnny is an American . He left my school and went back to American last year with his parents . He said he came back because his father has another job here .They are going to live here again for another two years .I was really happy to hear that . We were good friends when he was here before . I asked him to come in . I took him in to see my mother and father . They were both very happy to see him . Dad said , “Now Tony can get help with his math homework again.” But that’s not why I’m happy Johnny is back . I’m happy because he’s my friend.