1, This is the first time l have eaten this kind of food
=> l have............
=>l'am...........
2, He has never built a sand castle before
=> This is the first time..........
=> He.........
3,she is stayin in a hotel for the first time
=> This is the first time........
=> She had.........
4, We have never met such a beautiful girl before
=> This in the first time.,.......
=> We
5, l have never swum with a dolphin before
=> l am.......
=> This is the first time
6, He is writing a novel for the fint time
=> l am...........
=> This is the first time