求英语高手帮忙改倒装句……

求英语高手帮忙改倒装句……
1.He had never before seen a technically accurate drawing of the building.(用Never before改）
2.The housewife made her accusation and then the police took up her case.（用only after改）
3.It is seldom possible to have twins twice.（用Seldom改）
4.The mother had hardly opened the door,when her son rushed up to her.（用Hardly when改）
5.you cannot go out to play until you have finished your project.(用not until改)
6.Karin not only read the novel,but also watched the film.(用NOT ONLY 改）
7.He had no sooner got home than he had to go out to see his sick mother.(用 no sooner改）