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