I am xxx ,student of ABC school （一般现在时）.I have been studying English for 5years （现在完成进行时）,and in the past few years ,I had been wondering what to do in the future（过去完成进行时） .Actually ,I thought that I would be a worker when I graduated from university（一般过去时） .Yesterday ,when I was sleeping in class（过去进行时） ,my teacher woke me up and said :''You should listen to me carefully ,or you will not succeed in the future .'' His words reminded me of my previous dream of being a teacher（过去时） .So ,I decide to study hard from then on .I believe that I will be what I want to be if I work harder than others（一般将来时） .