8) she wasn't allowed to open her presents until her birthday
-> It was not until her birthday that she was allowed to open her presents.
9) we didn't have any holidays until last summer
-> It was not until last summer that we had a holiday.
10) she didn't stop learning german until the age of 24
-> It was not until the age of 24 that she stopped learning German.
11) l couldn't finish my project until mark helped me
-> It was not until mark helped me that I could finish my project.
12) they didn't pay the bill until the electricity was cut off
-> It was not until the electricity was cut off that they paid the bill .
13) l didn't sleep until midnight
-> it was not until midnight that I slept.
14) l couldn't comment further until l had all information
-> it was not until l had all information that I could  comment further.
15) he didn't return to his village until the war ended
-> it was not until the war ended that he returned to his village.

#NOCOPY

8.It was not until her birhday that she was allowed to open her presents

9.It was not until last summer that we had some holiday

10.It was not until the age of 24 that she stopped learning german

11.It was not until mark helped me that i could finish my project 

12.It was not until the electricity was cut off that they paid the bill

13.It was not until midnight that i slept 

14.It was not until i had all information that i could comment further

15.It was not until the war ended that he returned to his village

Form: It was not until....that S + Ved/V2