1. Had/ eaten/ before/ had/ the/work/she/ they/ finish. 2.Sam/ the songs/ had/ practiced/ the party/ started. 3. Three years/ that office/ worked/for/in/ by the time/ I met/ I had/ you.. 4.Had/she/ did/ her master's/ studied/ before/ In Vietnam/ Sam/ at Harvar. 5.She/home/when/ got/ hadn't/ come/ there/ we. 6.So/ sam/she/ hadn't/was/ done/ in trouble/her/ work. 7.Before/you/ had//to/ learned/ Tokyo city/ move/ Japan? 8.The airport/flight/ at/ had/she/her/ had/when/ arrived/ taken off.
2 Sam had practiced the song before the party started
3 I had worked in that office for 3 years by the time I met you
4 Sam had studied in VietNam before she did her master's at Harvard
5 When we got there she hadn't come home
6 Sam hadn't done her work so she was in trouble
7 Had you learned Japanese before you moved to Tokyo city?
8 When she arrived at the airport, her flight had taken off