1.他一到办公室就坐下来开始工作（upon doing）
问题描述：
1.他一到办公室就坐下来开始工作（upon doing）
2.爱迪生年轻的时候考卖报纸维持生计(earn one's living by doing sth)
3.他养成读书时记笔记的习惯(develop the habit of doing sth)
4.凯特不仅仅是为好老师,她还尽其所能帮助她的学生(more than)
答
1.他一到办公室就坐下来开始工作（upon doing）He sits down for beginning to work upon arriving at office .2.爱迪生年轻的时候考卖报纸维持生计(earn one's living by doing sth)Edison earned his living by se...