Chia các động từ trong ngoặc với các thì Quá khứ đơn , Quá khứ tiếp diễn , Hiện tại hoàn thành hoặc hiện tại hoàn thành tiếp diễn. When John Mills (1.be)................................eighteen he (2.leave)................................his home in the country and (3.go)................................to study in London.While he (4.study)................................ at the University there ,someone (5.ofter)................................him a job as a salesperson . At the time he (6.try)................................to finish his degree so he (7.turn down)................................the job.Since then he (8.do)............................many kinds of jobs , including and farming .He (9.also/run).............................. a shop ,which is the only job he (10.not/like)............................Since last September he(11.try)...................... to find a job in an art gallery because he wants to learn about paintings , but so far he (12.not/have).............................. much look.