Li Lei didn't listen to the teacher carefully when he was 71

Li Lei didn't listen to the teacher carefully when he was 71 English in clas
Li Lei didn’t listen to the teacher carefully when he was 71 English in class.After he graduated from junior middle school,he opened a 72 in the summer holidays.In the shop,he mended 73 ,TV sets,washing machines and so on.One day a man 74 a computer came into Li Lei’s shop and 75 Li Lei to mend it.Li Lei was very worried.76 he didn’t know the meaning of English on the computer,he wasn’t 77 to mend it.From then on Li Lei thought English was very useful and worked 78 at English.After senior middle school,he 79 on to college.Now,he studies English well.He is teaching the laid-off workers 80 to use the computer in his spare time.71.72.73.74.75.76.77.78.79.80.