I was showing him a thing or two on the guitar.请老师讲解下这句话,为什么要这么来说?谢谢您

I was showing him a thing or two on the guitar.请老师讲解下这句话,为什么要这么来说?谢谢您 Look!Hobo is showing him a Mr Jackson is a new teacher__Canada.I'm __our schoolA.in ,show him around B.from,showing him around C in,showing him in D.from,show him in I _____ the way to the bus stop by a kind girl last Saturday.A.was shown B.showedC.have shownD.was showing An Englishman was showing a foreibn visitor around An Englishman was showing a (f )visitor around Londo We are good friends.I often talk ________ him after class.He isn't playing _______ a computer now.The girl is showing her parents ________ her school. I was happy,so I gave him a kiss.I was happy.So I gave him a kiss.哪一句对 what a fool i was to have expected him to help me 可不可以去掉was to That was __ yesterday.A.what did I tell him;B.what I told him;C.what do I tell himD.what I tell him he asked me if i was ready .i a----- him with a nod When I went to see him,I saw him the violin.A、playB、to playC、playingD、was playing I——(know) him when I was a student.为什么要用过去完成时? I ——(know) him when I was a student.为什么要用过去完成时而不是一般过去时? 请各位帮我解决一下这些英语问题:1、She will stop showing off if no notice is taken of her.是什么意思啊?2、Could you tell me______? A、what’s wrong with him B、what wrong is with him C、what wrong with him was I c______ him that she was honest because I was hopeless to love him I was too tired to stop him.