1.I live on a farm once, but I don’t any more A=>I used to live on a farm B=>I used to lived on a farm C=>I use to live on a farm D=>I used to living on a farm 2.My sister played tennis a lot, but she doesn’t play very often now A=>My sister uses to play tennis a lot B=>My sister used to play tennis a lot C=>My sister use to play tennis a lot D=>My sister used to play tennis a lots 3.Mr. An didn’t drink coffee when he was young but he likes it now A=>Mr An didn’t use to drink coffee when he was young B=> When he was young, Mr An didn’t use to drinking coffee C=>Mr An didn’t used to drink coffee when he was young D=>Mr An didn’t use to drinks coffee when he was young 4 Mary didn’t usually come to Singapore when she was young. A=>Mary didn’t use to come to Singapore where she was young. B=>Mary didn’t use to come to Singapore when she is young. C=>Mary didn’t use to come to Singapore when she was young. D=>Mary didn’t used to come to Singapore when she was young. 5.Did he often go to work by plane when he lived in England? A=>Did he use to go to work by plane when he live in England? B=>Did he use to going to work by plane when he lived in England? C=>Did he used to go to work by plane when he lived in England? D=>Did he use to go to work by plane when he lived in England? 6 My grandfather didn’t drink beer when he was young but he likes it now => My grandfather……………………………………………………… 7. Did your brother give up smoking two years ago? => Did ………………………………………………………………….. 8. I eat ice-cream now, but I disliked eating it when I was a child. =>I …………………………………………………………………….. 9.There were lots of trees along this street. =>There …………………………………………………………………. 10. When Hoa was 13 years old she usually walked to school every day. =>Hoa ………………………………………………………………………..