Rewrite the following sentences, keep the meaning unchanged. 30. When did John buy the car?  How long is it ................ ………………………………………………… 31. How long is it since Tom left school? When……………………………………………………………………. 32. When did you read that novel? How ………………………..………………………....................................... 33. How long has she done that exercise? When did……………………………………………………………………. 34. When did you phone her? How long………………………………………………...............................? 35. How long have his parents visted him ? How long ago................................................................................................? 36. How long has your aunt lived in that city? How long ago……………………………………………….…………….