20.It's not common for there to be so much rain in March
→Seldom is there so much rain in March.
21.You won't allowed in until your indentify has been checked
→Only when your indentify has been checked will you be allowed in.
22.Just after the play started there was a power failture.
→Hardly had he play started when there was a power failture.
23.The Prime Minister has hardly ever made a speech as inept as this
→Rarely has the Prime Minister made so inept a speech.
24.We had only just arived home when the police called
→Scarcely had we arived home when the police called.
 25.Press photographers are banned from taking photographs backstage
→On no account are press photographers allowed to take photographs backstage
26.The way so much money has been spent to so little purpose must be a record
→Never before has so much money been spent to so little purpose !
27.The judge was taken ill just after the trial proceeding began
→ Barely had the trial proceedings begun when the judge was taken ill.
28.She seldom misses a lecture. 
→ Seldom does she miss a lecture.
29.As soon as we had come home, it started to rain 
→ No sooner had we come home than it started to rain
30.As soon as we had turned on the TV, the electricity went out.
→ Hardly had we turned on the TV when the electricity went out.
31. I have never been embarrassed like that! 
→ Never have I been embarrassed like that!
32. She had never experienced this exhilarating emotion in her life.
→ Never in her life had she experienced this exhilarating emotion.
33.He has seldom seen anything stranger
→Seldom has he seen anything stranger
34. I have seldom seen him looking so miserable. 
→ Seldom have I seen him looking so miserable.
35. As soon as I had got out of the bed, the phone rang.
→ Scarcely had I got out of bed when the doorbell rang.
36. As soon as he had finished dinner, she walked in the door.
→ No sooner had he finished dinner than she walked in the door.
#nocopy