1.时态I had never done ....., because I don’t think..... had改成have，时态一致2.because I don’t think it’s right time we undertake ...... we改成for us to句子结构混乱3I spent most of my free time reading......spend4.I am sure excellent students in your university needn’t worry.... student；your改成my或者去掉，needn’t前加who引导从句5.最后一大句感觉有点乱，你写这个是要为什...
Unlike most other classmates, I have never been engaged in commercial job in the university, because I don’t think it’s right timefor ustoundertake commercial business. Moreove...
